Libyan rebels shout slogans as they hear about air strikes at front line near Brega, Libya, Friday, April 1, 2011. Libya's rebels will agree to a cease-fire if Moammar Gadhafi pulls his military forces out of cities and allows peaceful protests against his regime, an opposition leader said Friday as rebels showed signs that their front-line organization is improving. (AP Photo/Altaf Qadri)