NEW : Activists refuse to sign protest papers , organizers say . NEW : Jerusalem ( CNN ) Activists criticize the Israeli military response as ` ` violent and dangerous '' A Canadian activist complains of rough seas , Israel 's foreign minister says . Previous flotillas have sparked international protests .
NEW : Activists refuse to sign protest papers , organizers say . NEW : Activists criticize the Israeli military response as ` ` violent and dangerous '' A Canadian activist complains of rough seas , Israel 's foreign minister says . Previous flotillas have sparked international protests .