| QUOTE |
| The US Senate has issued a subpoena ordering the White House to release documents relating to its surveillance of domestic terror suspects. The documents relate to the warrantless surveillance of people inside the United States with suspected ties to terrorists. |
| QUOTE |
| Bush could challenge the subpoenas, citing a right of executive privilege his predecessors have invoked with mixed success to keep certain materials private and prevent aides from -*test*-('")ifying. |