** FILE ** Palestinians and foreign activists chant slogans as they march with their hands chained together during a protest held in solidarity with Palestinian prisoners held in Israeli jails in Gaza City, Thursday, Feb. 14, 2013. (AP Photo/Adel Hana)

Photo by: Adel Hana

** FILE ** Palestinians and foreign activists chant slogans as they march with their hands chained together during a protest held in solidarity with Palestinian prisoners held in Israeli jails in Gaza City, Thursday, Feb. 14, 2013. (AP Photo/Adel Hana)