Some reporting had been done by different media outlets on how Amazon was evading taxes overseas, but Reuters decided to look into what might be happening in the U.S. To find this information, they examined accounts filed in six countries by 25 different Amazon units.

The main analysis of this data was tracking payments between the units to assess the minutiae of how taxes were being avoided.

To do this, the reporter would have needed to be able to create customized computer lists to track money going between specific units, and would also have needed to do basic math with large sums.

The story includes a short slideshow, but no graphics. However, because of the complexity of the topic, there is an associated video called "Amazon's billion-dollar tax shield: decoder."

The video breaks down the issue into small pieces, showing how Amazon set up the tax-evasion system over time, and why this system works the way it does.

The plane, which was carrying six people in addition to Rivera, was discovered in a mountainous area south of Monterrey late Sunday. There were no survivors.

A government spokesman said the plane left Monterrey at about 3:30 a.m. and was scheduled for arrival outside Mexico City an hour later, the Associated Press reported. But aviation authorities lost contact with the plane about 10 minutes after takeoff.

Rivera, known as "Diva de la Banda," was born in Long Beach, Calif., the Associated Press reported. She is the daughter of Pedro Rivera, who launched an independent record label in 1987, the Los Angeles Times reported. Rivera's four brothers are also involved in the music industry -- her brother Lupillo Rivera is a popular singer.

Rivera, who has five children and two grandchildren, was reportedly seeking a divorce from her third husband, former Major League Baseball pitcher Esteban Loaiza, the Associated Press reported.

Snowfall was most intense Sunday afternoon. The National Weather Service predicted up to 15 inches could cover the area by the end of the day.

According to the Pioneer Press, the storm caused traffic accidents across the state. One fatal accident was reported in Goodhue County.

At 1:30 p.m., most Metro Transit buses were running behind schedule.

Flights were also affected, the Star Tribune reported. More than 150 flights out of Minneapolis-St. Paul airport were cancelled.

The opening, which was made possible by a $243 million renovation, is expected to serve buses, light-rail and Amtrak by 2014.

Next month, Jefferson Regional Bus Lines will open at the site, the Star Tribune reported.

According to the Star Tribune, the opening celebration included a morning dedication ceremony, movies in the evening and activities throughout the day.

According to the Pioneer Press, Sen. Amy Klobuchar said the depot is "historic, iconic and one of the great railway stations of the 20th century."

"But that doesn't mean it can't also be modern, efficient and one of the great American railways stations of the 21st century," she said.

The nurse who answered the call, 46-year-old Jacintha Saldanha, was found dead Friday, the New York Times reported. Her death was apparently a suicide.

The radio hosts, Mel Greig and Michael Christian, called King Edward VII's hospital Tuesday morning and posed as Prince Charles and Queen Elizabeth, the New York Times reported. After Saldanha answered the call, she directed them to another nurse who they tricked into revealing information about the Duchess of Cambridge, who is pregnant and was being treated for severe morning sickness.

According to the BBC, Saldanha, who is married and the mother of two, was not disciplined by the hospital and the royal family did not complain about the incident.

Rhys Holleran, chief executive of the company that owns the station that broadcast the show, said the event is "tragic," the BBC reported. But, he added, "I think that prank calls as a craft in radio had been going on for decades. They are done worldwide and no-one could reasonably have foreseen what happened."

According to the BBC, the station, 2Day FM, has suspended all advertisements until Monday and has taken Greig and Christian's show off the air until further notice.

The two cases center respectively on California's Proposition 8, which struck down the state's legalization of same-sex marriage, and the Defense of Marriage Act, which denies federal benefits to legally-married same-sex couples, the Associated Press reported. According to the Christian Science Monitor, the Supreme Court will likely hear the cases next spring.

Many supporters of same-sex marriage celebrated the news, the New York Times reported. According to the Associated Press, opponents of same-sex marriage were pleased by the announcement.

"We believe that it is significant that the Supreme Court has taken the Prop 8 case. We believe it is a strong signal that the court will reverse the lower courts and uphold Proposition 8," John Eastman, chairman of the National Organization for Marriage, told the Associated Press.

Some supporters of same-sex marriage concerned about what could happen if the court decides that same-sex marriage is not constitutionally protected, the New York Times reported.

"There is no question that it is a risk," California Lt. Gov. Gavin Newsom told the New York Times. "If they nationalize it and reject it, that's going to take decades to come back to the court."

Council members voted on the proposal at their Nov. 12 meeting, but this information is not the focus of the story. Rather, Roper used commentary from several city council members on their confusion about the issue, and their anger about the lack of information available to their constituents.

The story incorporates graphics showing the proposed changes to plane routes, and emphasizes the council members' frustration by including the fact that Lisa Goodman, who represents downtown, had to rely on a graphic in the Star Tribune to find out if the changes would affect her constituency.

The story also includes a quote from Goodman saying she thinks the proposal is being pushed through before "people find out what they're actually up to." This suggests to the reader that the changes are going to be negative for Minneapolis, and that the public should be concerned both about the changes and about the lack of information.

It may have been helpful to know how much information is typically offered to the public on issues like this one, in order to fully understand the issue at hand. However, it is clear from the anger from the four council members quoted in the story that this is out of the ordinary and a matter of concern.

The diagnostic guide is used in different ways across a number of nations, the BBC reported. According to the Associated Press, the manual affects who receives treatment, what insurance companies will cover and which students qualify for special education.

Asperger's will be incorporated under the new umbrella term "autism spectrum disorder," the Associated Press reported. Many healthcare experts already use the term, which encompasses mild to severe autism.

While some are concerned that Asperger's being dropped will prevent children previously diagnosed with the disorder from receiving treatment or being able to enroll in special education, the implementation of an umbrella term may have the opposite effect, the Associated Press reported.

In some states and school systems, children diagnosed with Asperger's were not provided with services, or received fewer services than those diagnosed with autism. Now, anyone previously diagnosed with Asperger's will fall under the new autism spectrum disorder diagnosis and be treated accordingly.

Another change to the manual is the addition of "disruptive mood disregulation disorder," a diagnosis for unusually bad and frequent temper tantrums, the Associated Press reported. According to the BBC, supporters of the addition say it will address the high number of children being misdiagnosed with bipolar disorder.

Byron Smith, 64, shot 17-year-old Brady and 18-year-old Kifer multiple times as they entered his basement. According to the Pioneer Press, he put their bodies in a workshop, and police were notified a day later after receiving a call from a neighbor.

Brady and Kifer were connected to a burglary the previous day. They apparently stole prescription medicine and coins from a home south of Little Falls.

A funeral was held Saturday, the Star Tribune reported. Community members wanted to focus on good memories of the two teens and show support for their families.

But questions remain about how and why the incident occurred.

"It's been really sad. A lot of people want to know what happened," Shania Morawczynski, a classmate, told the Star Tribune.

The bill, which was written by state Rep. Debra Hilstrom, DFL-Brooklyn Center, and Sen. Ron Latz, DFL-St. Louis Park, would also protect against financial exploitation.

According to the Star Tribune, the bill comes in the wake of the prosecution of former guardian Terri Ann Hauge, who stole tens of thousands of dollars from the bank accounts of multiple wards.

Hauge had been suspended from practicing law in 1995, the Pioneer Press reported, but was still able to serve as a guardian because Minnesota Law does not require the disclosure of suspensions.

According to the Pioneer Press, the new legislation would require background checks every two years instead of the current five years. It would also require potential guardians to disclose information that could impede their ability to be a guardian, including whether they had a license denied, suspended or revoked in the past.

After 3 car bombs were detonated near the entrance to the base, fighters disguised in coalition military uniforms attempted to enter the base, the New York Times reported. According to the Telegraph, Nato helicopters repelled the attackers.

The Taliban quickly took responsibility for the attack, the New York Times reported, saying they killed "tens" of forces. But according to the New York Times, they frequently overstate their inflicted casualties.

According to the Telegraph, this "at least the third" major assault on a base in Afghanistan this year, but apparently caused less damage than previous attacks.

Fighting, which started around 6 a.m., ending around 8:30 a.m. All of the attackers were killed.

The group, Jews Offering New Alternatives for Healing, which is based in Jersey City, is charged with falsely claiming to be able to eliminate homosexual desires in its clients, the Chicago Tribune reported.

JONAH was founded by Arthur Goldberg and Alan Downing. The group -- which, despite its named, is not religiously affiliated -- describes itself as working "directly with those struggling with unwanted same-sex attractions," the New York Times reported.

According to the New York Times, these therapists -- part of a larger group including conservative religious leaders and self-identified "life coaches" -- argue that homosexuality is caused by childhood trauma, such as sexual abuse or parenting issues.

JONAH clients underwent therapy sessions that included removing all their clothes or beating effigies of their mothers, the Chicago Tribune reported. Minimum weekly prices for therapy sessions were $100, with an additional $60 charged for group therapy sessions.

The four men and two of their mothers are being represented by lawyers from the Southern Poverty Law Center, an Alabama-based civil rights group.

"The defendants peddled antigay pseudoscience, defaming gay people as loathsome and deranged," one of the group's lawyers, Sam Wolfe, told the New York Times.

The reporter, Dan Frosch, made extensive use of both scene-setting and tribal history in the first part of the article. This provided grounding for the reader, and allowed them to fully understand the context of the current conflict.

Frosch went to the reservation and spoke with the tribal chairman. He also spoke with the tribe's lawyer and the mayor pro tem of a town near the reservation. To represent the other side of the conflict, he interviewed a spokesperson for the Interior Department and did an email interview with a spokesperson for the governor of New Mexico.

There are, of course, a lot of stereotypes about Native American reservations and casinos. Frosch avoids these by making the story more about the conflict and its history than about the casino itself. In order to do this, he represents both sides thoroughly, explaining what is at stake for both. This equalizes them to some degree, but also, I think, leaves the reader on the side of the tribe.

The story, with its vivid scenes and rich history, shows the reader that what is most important to tribe members is to regain land they lost in the 19th century, and that building a casino is a way to do so.

A report by Ernst and Young found that Ikea knowingly used and benefited from forced labor, the New York Times reported. The report was commissioned by Ikea in May, following accusations that forced labor was used with employee knowledge.

According to the Los Angeles Times, investigators examined 100,000 documents from Ikea and Germany, interviewed 90 people and set up a tip hotline.

Jeanette Skjelmose, Ikea's sustainability manager, expressed the company's regret in a statement. The company said it will donate funds to research on forced labor in East Germany, the LA Times reported.

According to the New York Times, Ikea is not the first company revealed to have used East German forced labor, though the actual number is not known.

Elaine M. Clausen, 11-year-old Leala Clausen and Gion Clausen, about five, were driving on the 7600 block of Argenta Trail near Minnesota 55 when their car collided with the bus, the Star Tribune reported. Police were notified of the crash at about 4 p.m.

According to the Pioneer Press, both vehicles partially caught fire. But the bus driver -- the only person on the bus -- was not injured.

According to the Star Tribune, the identities of the victims have not yet been confirmed by the Minnesota Regional Medical Examiner.

Clausen was a school bus monitor, the Star Tribune reported. Marvin Emeott, one of her co-workers, said she knew the importance of being cautious when driving near school buses.