From the site's current :

"You are solely responsible for your interactions with other members. You understand that Match.com does not in any way screen its members, nor does Match.com inquire into the backgrounds of its members or attempt to verify the statements of its members."

The truth is that dating sites will always be dicey. A user is agreeing to meet a complete stranger--with all the inherent risks. And if a Match.com user doesn't have a prior history of criminal misconduct, it's highly unlikely the site could determine whether he or she is a potential sex offender.

Match.com admits its background-screening plan is less than perfect.

"We want to stress that while these checks may help in certain instances, they remain highly flawed, and it is critical that this effort does not provide a false sense of security to our members," Ginsberg said.