NEW : Activists refuse to sign deportation papers , organizers say . The group is calling for a nationwide day of action on April 15 in support of immigrants and their families who are being deported from the U.S. by Immigration and Customs Enforcement (ICE). Activists criticize the Israeli military action as `` violent and dangerous '' A Canadian activist complains of rough treatment , Israel 's foreign ministry says . Previous flotillas have sparked international controversy .
NEW : Activists refuse to sign deportation papers , organizers say . NEW : Activists criticize the Israeli military action as `` violent and dangerous '' A Canadian activist complains of rough treatment , Israel 's foreign ministry says . Previous flotillas have sparked international controversy .