A company that provides a service we never even heard of called the Clear Registered Traveler Program has abruptly gone out of business, KCBS reports. Clear operated special security lanes at 20 airports around the country, including all 3 Bay Area airports, purporting to provide (for a $200 annual membership fee) a pre-screening service for frequent travelers that would allow them to scoot through security as if they were trusted government dignitaries. But as the WSJ puts it, "TSA never was comfortable with the notion of 'trusting' any travelers, so the security benefits of a Clear card boiled down to getting a special lane and some staff to help carry plastic tubs for you." Yeah, no wonder it flopped.