Not much isn't known about Michaele and Tareq Salahi's uninvited visit to a White House state dinner last year -- heck, they've talked about it on the 'Today' show. But a new book about the scandal claims the 'Real Housewives of DC' stars haven't discussed the incident, and directly blames so-called "iron-clad" contracts with the show's network, Bravo, for their supposed discretion.

Not surprisingly, Bravo isn't pleased with the claim, found in the book 'Cirque du Salahi: Be Careful Who You Trust,' and have shot back saying that any notion that their 'Housewives'-related contracts bar them from talking about the incident as "simply not true."