Jose Luis Magana / Reuters file
Army Pfc. Bradley Manning is escorted in handcuffs as he leaves the courthouse in Fort Meade, Maryland, on June 6.
Leonhard Foeger / Reuters
An employee of the microbiological laboratory of the Austrian Agency for Health and Food Safety prepares a sample of minced meat in Vienna this week. The samples of minced meat are tested for the presence of horse meat as a precaution. United States officials say it's highly unlikely the scandal will reach U.S. consumers.
Because Congress has prohibited a national computerized database of gun sales, tracking the sale of firearms is a cumbersome process forcing investigators to rely on research methods from decades past. And if the sale occurred through a private seller – which is how 80 percent of those convicted of gun crimes get their weapons -- no documentation is required. NBC's Michael Isikoff reports.
Department of Justice
According to a new White House report released today, cyber spying and other forms of economic espionage are a growing national security threat – especially from China, where hackers are able to quietly and discreetly acquire source code from U.S. companies. NBC's Andrea Mitchell reports.
Scott Borg says the U.S. possesses a 'formidable capability' to wage cyberwar.
Rick Wilking / Reuters file
First Lt Michael Newman examines a server rack that is isolated from the Internet at the Air Force Space Command Network Operations & Security Center at Peterson Air Force Base in Colorado Springs, Colo., in July 2010.
Charlie Neibergall / AP file
Traffic passes a red light camera at an intersection in Clive, Iowa.
Currently 21 states and Washington, D.C., use automated cameras at traffic intersections to catch violations such as running through red lights and stopping over white lines. While the cameras bring in thousands of extra dollars, drivers and some government officials argue they are inaccurate and rip people off. NBC's Tom Costello reports.
Mike Groll / AP file
In this aerial photo, people walk amid the destruction left in the wake of Hurricane Sandy, on Oct. 31 in Seaside Heights, N.J.
Brendan McDermid / Reuters file
David Koch is shown in New York on Dec. 10. In 2010, nearly half of the revenue for David Koch's Americans for Prosperity Foundation came from Donors Trust, in the form of $7.6 million in grants.
Jim Seida / NBC News
Jennifer Foley holds a portrait of her daughter, Rebecca, inside her Calhoun, Ga. home.
Courtesy Sarah Shoup
Rebecca Foley, left, leans against her VW Beetle with friend Sarah Shoup in this undated photo.
Colleen and William Liebrich, in an undated family photo.
Travin Varise, 2, was fatally shot at his Baton Rouge, La., home on Jan. 21.
Cocoa Police Dept.
Lydia Bradford, 24, was shot dead by a masked gunman who burst into the Cocoa, Fla., home she shared with her mother on Jan. 21.
The Rosalez Family
Steven Rosalez, 16, was killed by gunfire on Jan. 21 after an altercation outside a store in Pittsburg, Calif., allegedly by an ex-con he'd fought with earlier in the day.
Photo provided by friend
Chris Best, a Detroit music engineer, was slain on Jan. 21 while delivering money to the home of a friend who had done some construction work for him. Police believe the motive was robbery.
Family and friends remember 21-year-old shooting victim Rebecca Foley, a student at Savannah State University in Georgia, and grapple with her loss.
San Antonio Express-News via Zuma Press
One of 91 deaths identified by guns across America on a long holiday weekend: Officers with the Bexar County, Texas, Sheriff's Office investigate the shooting death of Jesse Rosas, whose bullet-riddled body was found on the side of a road near San Antonio on Jan. 21. Police have not identified any suspects.
Jason Monson aims a blank pistol at the camera. Jason, who grew up on a small horse farm in Idaho, was active in Cowboy Mounted Shooting, which uses blanks.
Manatee County Sheriff's Office
James Brady, 26, was shot and killed in Bradenton, Fla., Jan. 20, as he and two other masked men attempted to rob a resident in his carport, police said. One alleged robber, Jared Lee, has been charged with felony murder in Brady's death. Authorities are seeking a third man, Charles Jones.
Las Vegas Police
Las Vegas Police Lt. Hans Walters, 52, killed his wife, former police officer Kathryn Michelle Walters, and their 5-year-old son, Maximilian, called 911 to confess and then set his house on fire on Jan. 21, according to police. Walters killed himself with the handgun as police moved in.
Oregon State Police
Kayla Ann Hendrickson, 16, was killed alongside an Oregon highway on Jan. 19, by her boyfriend, Jacob Allen Green, 24, after an argument, according to police. Green committed suicide near the California border, they said.
As part of a weeklong special report, "Flashpoint:Guns in America," NBC News charted every death attributable to firearms that we could find over the three-day weekend in January ending on Martin Luther King Jr. Day. We found that, as President Barack Obama was being sworn in for his second term, at least 91 people were losing their lives to gunfire.
A look at some nations' gun ownership rates.
Larry W. Smith / EPA
Guns lie in a chair at the First Presbyterian Church parking garage in Dallas during a gun buyback program on Jan. 19, 2013. Across the street, gun-rights advocates were offering to auction off guns at higher prices.
Mel Evans / AP
Officers from the Mercer County Prosecutor's Office work at a two-day gun buyback event in Trenton, N.J., on Jan. 26. People were allowed to drop off weapons with no questions asked.
Andrea Mitchell talks with Rachel Maddow about the breaking news that the Department of Justice, with the confirmation hearing for John Brennan to head the CIA looming, will share their legal reasoning for extrajudicial targeting of Americans with drone strikes with the intelligence committees in Congress.
WXIA / NBC via Reuters
A 14-year-old pupil and a teacher were shot Thursday, Jan. 31, at Price Middle School in Atlanta. Another student at the school was arrested.
Khaled Abdullah / Reuters
Tribesmen this week examine the rubble of a building in southeastern Yemen where American teenager Abdulrahmen al-Awlaki and six suspected al-Qaida militants were killed in a U.S. drone strike on Oct. 14, 2011. Al-Awlaki, 16, was the son of Anwar al-Awlaki, who died in a similar strike two weeks earlier.
Michael Isikoff, national investigative correspondent for NBC News, talks with Rachel Maddow about a newly obtained, confidential Department of Justice white paper that hints at the details of a secret White House memo that explains the legal justifications for targeted drone strikes that kill Americans without trial in the name of national security.
A secretive memo from the Justice Department, provided to NBC News, provides new information about the legal reasoning behind one of the Obama administration's controversial policies. Now, John Brennan, Obama's nominee for CIA director, is expected to face tough questions about drone strikes on Thursday when he appears before the Senate Intelligence Committee. NBC's Michael Isikoff reports.