HPV infections fell by half in teenage girls after vaccine was introduced, study shows
Drones used on a 'very, very minimal basis' for domestic surveillance, FBI director says
BREAKING NEWS: FBI says Jimmy Hoffa search at Michigan field is completed. No remains found.
4 U.S. service members killed in mortar attack on Bagram Airfield in Afghanistan
WATCH LIVE: President Obama delivers remarks at Brandenburg Gate in Germany
VIDEO: http://nbcnews.to/11LqtyP
Chrysler agrees to recall 2.7 million Jeeps
NSA surveillance programs helped stop plots against New York Stock Exchange & New York subway system
NSA director says surveillance programs have helped prevent over 50 potential terrorist events since 9/11
WATCH LIVE: http://nbcnews.to/1bRsLC3
NASA adds 8 new astronauts, 4 of them women
Details: http://nbcnews.to/13Vd61C l Photo: NASA
Sesame Street debuts first Muppet to have a parent in jail
Story: http://nbcnews.to/19dwN8s
Jimmy Hoffa search: Federal agents digging in Michigan field for Hoffa's remains
Just in: Supreme Court strikes down Arizona law that requires people to show proof of citizenship to vote
Chicago violence: 7 dead, 41 wounded over the weekend
olice officer injured in shootout with Boston Marathon bombing suspects released from the hospital - via 7 News - WHDH
Story: http://nbcnews.to/198FTTX