CNN Sources: Envelope that tested positive for deadly poison ricin intercepted at the U.S. Capitol's off-site mail facility.

A U.S. Marine CH-53E "Super Stallion" helicopter made what the U.S. military headquarters in Seoul is calling a "hard landing' south of the demilitarized zone separating North and South Korea Tuesday

It is a race that some put on their bucket list and others use to test their body and mental toughness, but no one expected it to ever become a fight for survival.

The Dish offer is an attempt to top another bid for Sprint: $20.1 billion for a 70% stake from Japanese tech company Softbank. That offer, which Sprint accepted in October, was intended to give Sprint a much needed cash infusion to stave off a possible bankruptcy.

Several people have taken to Twitter to send their thoughts and prayers to victims of the Boston Marathon Explosion.

Authorities say actor-comedian Kevin Hart has been arrested on suspicion of drunken driving after his black Mercedes nearly collided with a tanker trunk on a Southern California freeway.

Meet the newest member of the Bush dynasty: Margaret Laura "Mila" Hager, born Saturday night to former first daughter Jenna Bush Hager and her husband Henry Hager.

The Travis County district attorney has apologized after her arrest on a drunken driving charge.

Indonesian investigators on Sunday began working to determine what caused a new Lion Air passenger jet to miss a runway while landing on the resort island of Bali, crashing into the sea without causing any fatalities among the 108 on board.

Authorities investigating the death of a Texas district attorney arrested a former justice of the peace and charged him Saturday with making a "terroristic threat" after searching his home.

Sen. Marco Rubio, R-Fla., said he's "very optimistic" that Congress this week will take up a comprehensive immigration reform bill that includes a path to citizenship for 11 million undocumented immigrants currently living and working in the United States.

U.S. and Japanese officials say their countries are committed to new talks with North Korea if the reclusive communist government begins abiding by previous agreements on its nuclear program.

Authorities investigating the death of a Texas district attorney arrested a former justice of the peace and charged him Saturday with making a "terroristic threat" after searching his home.

As North Korea prepares a potential missile test and issues threats almost daily, the Obama administration on Saturday looked again for China to force its unruly neighbor to stand down.

An Ohio police chief says he ate cake left in his kitchen without realizing it was laced with cannabis oil.

President Barack Obama's 2012 tax returns show he and first lady Michelle Obama paid $112,214 in taxes last year on $608,611 in adjusted gross income. They paid an effective rate of 18.4 percent for their federal income taxes.

An 18-year-old college student was charged Friday with shooting and wounding two women at a mall branch of a southwest Virginia community college before he was subdued, the city's police chief said.

A search warrant at the home of a former justice of the peace is being executed by the task force investigating the recent murders of a Texas district attorney and his wife, CBS News has confirmed.

One of the major stars of "It's A Mad, Mad, Mad, Mad World," Jonathan Winters appeared in 50 films, but it was his offbeat, improvised characters on television that we'll remember most.

Currently, the FDA does not have primary oversight of compounding pharmacies. States do, although the FDA can step in.

Health and Human Services Secretary Kathleen Sebelius testified to Congress on the president's budget. Released two days earlier, the budget included only a vague description of a controversial proposal that has grown more ambitious since Obama last floated it.

Bing, as a way to get Google users to switch to Bing's search engine, shot video in some of Topeka's hot spots for a commercial. Store owners are excited the commercial puts them on the map.

Comedian Jonathan Winters, whose breakneck improvisations inspired Robin Williams, Jim Carrey and many others, has died at age 87.

The president of Rutgers University says officials are now reviewing practice video from all the school's teams.

More than a dozen people remain hospitalized after a bus veered off a North Texas highway, struck a concrete barrier and toppled over in an accident that killed two people.