1.   A mixture of sea water and diluted formaldehyde was used to kill the spores.

2.   But critics of their work said that cosmic rays and ultraviolet radiation from the Sun would kill unprotected spores.

3.   Even so, the spores are quickly killed in sunlight, one reason it is hard to explain the oddest feature of the Stevens case.

4.   For instance, he said, a new focus of research is whether X-ray machines that scan bags can be easily adapted to kill anthrax spores.

5.   However, Koed said she was worried that incoming mail subjected to irradiation to kill anthrax spores may have been damaged.

6.   How do you kill the spores?

7.   If used, the gas would have seeped into every nook and cranny of the building, killing spores wherever they lurked.

8.   It turns out that a foil-wrapped spud holds in moisture, preventing its skin from reaching a high enough temperature to kill botulism spores.

9.   Never mind that anthrax has proved to be surprisingly heat-resistant, which is why the U.S. Postal Service is looking at irradiation technology to kill any spores.

10.   On Wednesday, the Postal Service began testing equipment to kill anthrax spores and sanitize mail.