50 activists plan to sail to Gaza to protest Israel 's blockage of the Palestinian territories . Last ##ly , 9 were killed after Israeli forces confronted a similar flotilla . The U.S. State Department earlier this week issued a travel warning advisting U.S. citizens `` against traveling to Gaza by any means , including via sea . '' Sec . of Hillary Clinton calls the group not ` ` useful , '' urging Americans not to take action . An activist say the group is giving Israel the ` ` green light '' to attack the flotilla .
50 activists plan to sail to Gaza to protest Israel 's blockage of the Palestinian territories . Last ##ly , 9 were killed after Israeli forces confronted a similar flotilla . Sec . of Hillary Clinton calls the group not ` ` useful , '' urging Americans not to take action . An activist say the group is giving Israel the ` ` green light '' to attack the flotilla .