The FBI has released photos of two suspects in the Boston Marathon bombings and is asking for the public's help in identifying them.

A report issued on Wednesday by the Centers for Disease Control and Prevention showed that infant mortality rates declined 12 percent from 2005 through 2011.

One day after the demise of gun control legislation, Senate supporters of the measure vowed to try again, while a leading opponent accused President Barack Obama of taking the "low road"

The impassioned push for new gun laws, born from the slaughter of schoolchildren, has collided with the marble-hard realities of Congress.

Paul Kevin Curtis appeared in a federal courtroom Thursday in Oxford, Miss., wearing shackles and a Johnny Cash T-shirt. His handcuffs were taken off during the brief hearing, and he said little.

Twitter has launched a service for people to find music they like and tweet songs from iTunes, Spotify and Rdio.

The Bruins hockey team and their fans had a special night on the ice and in the arena in honor of those affected by the Boston bombings.

President Barack Obama is seeking to refocus a nervous nation's attention on those killed and gravely wounded in what he called an "act of terror" at the Boston Marathon.

Mike Steenhout knows spreadsheets, statistics and bean-counting. He has worked as a budget assistant to the governor, managed local operations for the U.S. Census Bureau and analyzed juvenile crime databases.

The painstaking work to identify a bombing suspect from reams of Boston Marathon footage yielded a possible breakthrough as investigators focused on a man seen dropping off a bag, and then walking away

The mayor of West, Texas, says volunteer firefighters went to fight a fire at a fertilizer plant about a half-hour before a massive explosion tore through it and damaged surrounding buildings.

A massive explosion at a fertilizer plant near Waco on Wednesday injured dozens of people and killed an unknown number of others, leaving the factory a smoldering ruin and leveling buildings for blocks in every direction.

Authorities say an explosion at a fertilizer plant near Waco, Texas, has injured several people.

In a major setback for gun control advocates, the Senate Wednesday voted down a key amendment to the embattled Democratic gun bill, signaling the increasingly dim prospects of any meaningful legislative action aimed at strengthening America's gun laws.

There is an arrest in the investigation of recent mailings of ricin to federal officials.

President Barack Obama says the Senate's opposition to a bill that would have expanded background checks for gun buyers marks a "shameful day" in Washington.

The U.S. Secret Service says it has intercepted a letter addressed to President Barack Obama that contained a "suspicious substance."

The hospital calls it a "terrible mistake" and is extending "deep apologies" to the family. It also is offering counseling to employees of the linen service.

The exhaustive, yearlong investigation by the Senate Armed Services Committee focused on costs and burden-sharing as the United States spends more than $10 billion a year to back up the U.S. military presence overseas.

A day after the bombings, runners head back downtown to receive their marathon medals.

A bomber may have been seen amid the Boston Marathon revelers carrying an unusually heavy nylon bag, weighed down with shrapnel-packed explosives, the FBI has suggested.

President Barack Obama has aimed to be both visible and cautious in his response, declaring the attack an "act of terror" while warning the nation against jumping to conclusions.

Perhaps helping explain Democrats' problems, an AP-GfK poll this month showed that 49 percent of Americans support stricter gun laws.

On Tuesday, American and sister airline American Eagle canceled 970 flights and delayed at least 1,068 more by early evening, according to flight-tracking service FlightAware.com.

Authorities investigating the deadly bombings at the Boston Marathon have zeroed in on a man seen on surveillance video near the site of the attack.