1.   Elbit Ltd., a maker of medical scanners and televisions, and a defense contractor as well, were unchanged in Tel Aviv.

2.   The original plan of Congress was for the Transportation Department to buy thousands of explosive-detection systems, minivan-size machines that work like medical CAT scanners.

3.   The team used a medical MRI scanner to study the brains of the volunteers, selected from a Finnish twin registry.

4.   In Britain, all checked bags must be screened for explosives with X-ray or CT machines similar to medical CAT scanners.