Obama reviews use of president's secrecy privilege

President Barack Obama says there's no "simple formula" for deciding when sensitive information should be disclosed. But he's vowing both to safeguard the information that's necessary to protect the American people, and to assure "accountability and oversight" of government actions.

In his security speech Thursday, Obama said past presidents may have overused the privilege allowing them to keep secret sensitive national security information.

He's vowing to apply a "stricter legal test" to determine what material can be protected. And he says he'll let Congress have oversight over his administration's use of the privilege.

Obama says he won't withhold information simply because it embarrasses the government. He says, "I will never hide the truth because it is uncomfortable."