TURKEY-ISRAEL/ACTIVISTS-USA

A Palestinian boy fishes at the Gaza Seaport November 4, 2011. The United States warned on Thursday that a new effort by pro-Palestinian activists to send a flotilla to challenge Israel's blockade of the Gaza Strip was dangerous and urged U.S. citizens not to take part. REUTERS/Ibraheem Abu Mustafa (GAZA - Tags: POLITICS CIVIL UNREST)