Valuable con man

"Six years later, Playboy magazine has revealed that the CIA fell victim to an elaborate con by a compulsive gambler who claimed to have developed software that discovered al-Jazeera broadcasts were being used to transmit messages to terrorists buried deep in America. Dennis Montgomery, 56, the co-owner of a software gaming company in Nevada, who has since been arrested for bouncing $1m worth of cheques, claims his program read messages hidden in barcodes listing international flights to the US, their positions and airports to be targeted." (thanks David S.)