f you ever wander into a stranger's house and see Chris Hansen lurking about, it's time to call a lawyer. The gotcha "journalist" behind "Dateline" NBC's "To Catch A Predator" series has created a huge buzz by exposing and shaming Internet predators to the delight of millions of Americans, parents' groups, and even a swooning Oprah Winfrey. Nowadays, the "To Catch A Predator" website is, oddly enough, even hyping the fact that former Representative Mark Foley at one time praised the program--making the show seem like a twofer, I suppose: "To Catch A Hypocrite!"