President Barak Obama pledged to seek answers for the victims of the Boston Marathon explosions about the motives and the planning behind the deadly blasts, even as he acknowledged that the capture of a second suspect brought to a close a trying five days for his presidency and for the nation.

As his train rolled across Germany in 1939, passing through small towns where swastikas fluttered from flagpoles, Tad Taube cowered in fear each time Nazi police entered his compartment and barked orders for his documents - papers that plainly identified him as an 8-year-old Jewish boy from Poland.

The intensive manhunt for the bombers behind the deadly Boston Marathon attacks didn't take place only on the streets with professional police officers and SWAT teams. In an era of digital interactivity, it also unfolded around the country from laptops and desk chairs filled with regular folks.

As the U.S. prepares to provide far more nonlethal aid to opposition forces in Syria, the regime of President Bashar Assad faces a new threat from European nations that could determine whether a stronger international intervention might be attempted.

Al Neuharth changed the look of American newspapers when he founded USA Today, filling the newspaper with breezy, easy-to-comprehend articles, attention-grabbing graphics and stories that often didn't require readers to jump to a different page.

Two explosions near the finish line of the Boston Marathon on Monday killed three people and wounded scores. A look at the basics of the case:

World finance leaders say they are determined to attack a sluggish global economy in which growth is too weak and unemployment too high. Their problem is arriving at a consensus over the proper mix of policies.

One-time slave quarters will be recreated at Thomas Jefferson's home at Monticello, and more of the Declaration of Independence writer's living quarters will be restored using a $10 million gift from a philanthropist who has a keen interest in the nation's history.

Guest lineups for the Sunday TV news shows:

Communities along the Mississippi River and other rain-engorged waterways are waging feverish bids to hold back floodwaters that may soon approach record levels.

Bob Leonard and his family were Boston Marathon veterans and he preferred a spot not too far from the finish line to shoot runners as they concluded their 26.1-mile run. The area was less congested and over the years he learned that the men and women in the lead there usually went on to win.

Key moments related to the search for the Boston Marathon bombing suspects, based on reports from the Massachusetts governor, the Middlesex County district attorney, Massachusetts State Police and Boston police.

Tamerlan Tsarnaev was an amateur boxer with muscular arms and enough brio to arrive at a sparring session without protective gear. His younger brother Dzhokhar was popular in high school, won a city scholarship for college and liked to hang out with Russian friends off-campus.

"We got him," - Boston Mayor Tom Menino, in a tweet about the capture of the surviving Boston Marathon bombing suspect, Dzhokhar Tsarnaev.

Finally with a firm body count, the Central Texas town torn and bruised by a crater-making fertilizer plant explosion shifted toward recovery.