File photo dated 14/05/2010 of a woman using a Blackberry to view the social networking site Facebook in London. PRESS ASSOCIATION Photo. Issue date: Sunday August 1, 2010. The United Arab Emirates (UAE) will block key features on BlackBerry smart phones, citing national security concerns because the devices operate beyond the government’s ability to monitor their use. See PA story UAE Blackberry. Photo credit should read: Anthony Devlin/PA Wire