The head of the NSA testified on Capitol Hill Tuesday. General Keith Alexander disputed news reports that the NSA collected the phone call data of citizens in France and Spain. The NSA is facing tough criticism over its extensive surveillance efforts, including the apparent monitoring of phone calls of the leaders of countries that are close U.S. allies. The NSA controversy has also prompted legislators to change the way the agency conducts surveillance. Two reforms aim to limit the NSA's ability to collect the phone records of U.S. persons in bulk.