2008 presidential hopeful Hillary Clinton said Thursday that she was "deeply disturbed" to learn that the National Security Agency was data-mining phone records to track down terrorists. "Like many Americans, I am deeply disturbed" over the NSA program, she said in a statement posted to her Senate web site. "We all deserve to know why the NSA has blocked the Department of Justice from investigating the NSA’s domestic surveillance program and why it has created an enormous database of Americans’ phone records," she complained. Mrs. Clinton suggested that using phone records to track down terrorists was unconstitutional, saying the latest...