No ethics rules in the US House, sayeth the ethics committee

The US House ethics committee has reported findings on the Foley case. The NY Times reports:

"The panel said it found no evidence that any current lawmakers or aides violated any rules. But it said it discovered a pattern of conduct among many 'to remain willfully ignorant of the potential consequences' of Foley's conduct."

So negligence and aiding and abetting sexual harassment of minors is not against the US House ethics rules.

Why am I not surprised by that.