Photo Gallery: Angry protests, clashes on Egypt anniversary 20/29

Egyptian protesters throw stones at riot police, not seen, and use scrap metal to deflect stones being returned by security forces during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. Youth activists and opposition groups have called for large rallies to mark the second anniversary of Egypt's Jan. 25, 2011 uprising that toppled long-time authoritarian leader President Hosni Mubarak. (AP Photo/Khalil Hamra) ORG XMIT: KH109