“Privately, Mr. Obama maintained the monitoring of Mr. Netanyahu on the grounds that it served a ‘compelling national security purpose,’ according to current and former U.S. officials,” the Wall Street Journal reported. “Mr. Obama mentioned the exception in his speech but kept secret the leaders it would apply to.”
http://www.wnd.com/2015/12/obamas-nsa-spied-on-congress-israel-report/?cat_orig=us