The Financial Post reports in its Thursday edition U.K. Prime Minister David Cameron is using his BlackBerry smart phone to deflect criticism for going on holiday during a tense political period. The Post's Armina Ligaya writes that after getting flak from MPs for taking a second summer vacation as Britain stepped up its involvement in the global effort to combat Islamic State extremists in Iraq, Mr. Cameron said he could still "manage" the situation via his BlackBerry smart phone. "Wherever I am in the world, I am always within a few feet of a BlackBerry and an ability to manage things should they need to be managed," Mr. Cameron said this week, according to The London Daily Mirror. Labour MP John Mann, however, hit back, saying "Government by BlackBerry is not any kind of government." Mr. Cameron is one of several world leaders who use BlackBerrys, including German Chancellor Angela Merkel, U.S. President Barack Obama and Denmark Prime Minister Helle Thorning-Schmidt. BlackBerry shares closed Wednesday at $11.15, up 38 cents on the Toronto Stock Exchange.