"So a study on screening seemed in order," she says.

But this new focus on screening is also dangerous (and I am not referring to the myriad lawsuits waiting in the wings).

Stiglitz's most famous research was on screening, a technique used by one economic agent to extract otherwise private information from another.

It outlined a plan to crack down on screening and training in seminaries.

Part of long-term follow-up should also be focused on appropriate screening for educational and vocational services.

Better information on cervical and breast screening, for example.

Professional guidelines therefore suggest that alternative forms of contraception be used rather than relying on screening.

You have come forward with some ideas on screening.

Delays will paralyze the air traffic system if federal officials insist on full screening, the managers said.

With this background, let's look at the two recent studies on screening.