Under international law Israel is within its rights to establish a maritime blockade of the Hamas-ruled Gaza Strip, and to arrest "peace activists" on board vessels attempting to run the blockade, since Hamas is a hostile entity engaged in illegal armed confiict against Israeli civilians. 
The Israel-Palestine Mission Network of the Presbyterian Church (USA) injects anti-Jewish animus into peacemaking efforts by obliquely linking acts of violence to Jewish groups in the U.S.
J Street has condemned a report issued by the PC(USA)'s Middle East Study Committee for seeking to withhold military aid to Israel and for invoking their name without consultation.
Presbyterian Peacemakers affirm Israel's right to exist in one document, but attack Zionism in another.
Anna Baltzer is a Jew who makes false charges against Israel. This puts her in high demand as a speaker at churches and universities who relish a Jew condemning Israel. 
In his article today about the allegedly peaceful and nonviolent Bilin demonstrations, Richard Boudreaux of the Los Angeles Times discounts the rock-throwers who have injured some 200 Israeli soldiers and border policemen.
The Daily Show features a segment with Palestinian activist Mustafa Barghouti and anti-Israel extremist Anna Baltzer defaming Israel. 
Human Rights Watch, the NGO that has become more famous for its obsessive attempts to delegitimize Israel than for its stated mission to promote global human rights, is becoming less and less credible. Now, even its founder and former chairman, Robert Bernstein, has publicly dissociated himself from that NGO's agenda.