Three Drug Enforcement Administration agents are under investigation for allegedly hiring prostitutes in Cartagena, Colombia, a congressional source confirms to CNN.

The climbers, hailing from four nations, died while coming down the southern slope of Mount Everest after reaching the 29,028-foot summit, officials said.

A 21-year-old man was arrested in connection with the two-month-old disappearance of a California teen, authorities said.

Calling the students an inspiration "to me ... the world," President Barack Obama urged Joplin High School graduates Monday to heed the lessons they've learned and spirit they've shown to rebuild not only their tornado-ravaged city, but their nation.

Ryan Crocker, the U.S. ambassador to Afghanistan, is expected to step down this summer after a year in the job, two U.S. officials familiar with the matter told CNN early Tuesday.

NATO leaders signed off on President Obama's exit strategy from Afghanistan that calls for a 2013 end to combat operations.

Ex-Rutgers student Dharun Ravi got 30 days for spying on his gay roommate, Tyler Clementi, with a webcam. Clementi killed himself after he found out about the camera.

Eight people were shot in Oklahoma City Monday night just blocks from the Chesapeake Energy Arena as large crowds were leaving the Thunder and the Los Angeles Lakers game, police said.

The troubled Archdiocese of Philadelphia said Monday that it has ousted two priests due to allegations of sexual abuse of minors.

A mother of twins born 18 months after the death of the biological father lost her Supreme Court appeal Monday, and the children are not eligible for survival benefits under Social Security.