Article Photos: Facebook unveils social search feature 4/9

Facebook CEO Mark Zuckerberg answers questions after speaking at Facebook headquarters in Menlo Park, Calif., Tuesday, Jan. 15, 2013.  Zuckerberg introduced âgraph search" Tuesday, a new service that lets users search their social connections for information about their friendsâ interests, and for photos and places.  (AP Photo/Jeff Chiu)