Editing Plausible deniability (section)

===Later legislative barriers===
The [[Hughes–Ryan Act]] of 1974 sought to put an end to plausible denial by requiring a presidential finding for each operation to be important to national security, and the [[Intelligence Oversight Act]] of 1980 required for Congress to be notified of all [[covert operations]]. Both laws, however, are full of enough vague terms and escape hatches to allow the executive branch to thwart their authors' intentions, as was shown by the [[Iran–Contra affair]]. Indeed, the members of Congress are in a dilemma since when they are informed, they are in no position to stop the action, unless they leak its existence and thereby foreclose the option of covertness.<ref name="NYT">[[New York Times]] Under Cover, or Out of Control? November 29, 1987 Section 7; p.  3, Column 1 ''(Book Review of 2 books: The Perfect Failure and Covert Action)''</ref>