"The use of these powers as a way to clamp down on non violent activists from Palestine and Britain is not acceptable, what is the British government afraid of? Maybe the fact the activists, returning home from Palestine, work with Corporate Watch and have helped reveal the continued supply of weaponry from Britain to the Israeli army has made them a target. This is despite the current British arms export policy stating it won’t deliver weapons to any countries breaking UN treaties."
http://palsolidarity.org/2013/02/british-activists-being-detained-in-uk-airports-under-anti-terrorism-legislation-on-return-home-from-palestine/