The wall must fall, reference to the Israeli aparthid wall. Peace protesters hang banners from the security fence at Cardiff Castle, a NATO Summit venue, Cardiff, South Wales. - Jess Hurd - 2010s,2014,activist,activists,anarchism,anarchist,anarchists,banner,banners,CAMPAIGN,campaigner,campaigners,CAMPAIGNING,CAMPAIGNS,Castle,DEMONSTRATING,Demonstration,DEMONSTRATIONS,fence,flag,flags,han