Tip-off thwarted nuclear spy ring probe

AN investigation into the illicit sale of American nuclear secrets was compromised by a senior official in the State Department, a former FBI employee has claimed.

The official is said to have tipped off a foreign contact about a bogus CIA company used to investigate the sale of nuclear secrets.

The firm, Brewster Jennings & Associates, was a front for Valerie Plame, the former CIA agent. Her public outing two years later in 2003 by White House officials became a cause célèbre.