enormous potential for blackmail.

Sidney Blumenthal writes here and here about Jeff Gannon/Jim Guckert

"dozens of photographs of "Gannon" in dramatic naked poses. One of the sites was still active this week.

Thus ... [Gannon] was unmasked not only as a hireling and fraud but as a gay prostitute, with enormous potential for blackmail."

That euphemism is new to me. Am I going to start getting Spam advertizing guaranteed herbal "potential for blackmail" enlargement pills ?