1.   By placing radon gas detectors in homes the scientists are getting a clear picture of the problem around the country.

2.   Gas detectors are mounted like security cameras on every walkway, calibrated to shut down the rig if a gas leak is detected.

3.   Another new product to be unveiled is the Draeger Miniwarn, a portable gas detector.

4.   On Sunday, a gas detector on the site registered a minor leak of phosgene, used as a poison gas in warfare.

5.   On Wednesday, a U.S. Galaxy transport plane bearing protective gear for Israeli pilots and poisonous gas detectors arrived in Tel Aviv.

6.   The white paper also called on police to be equipped with gas detectors and other scientific devices and to further study chemical weapons.