A question...

Was the Israeli experiment on Columbia part of ongoing Israeli
development programs for weapons of mass destruction in chemical or
biological warfare?

Check this out:

"NASA EXPERIENCE: In 1997, Colonel Ramon was selected as a Payload
Specialist. He is designated to train as prime for a Space Shuttle
mission with a payload that includes a multispectral camera for
recording desert aerosol. In July 1998, he reported for training at
the Johnson Space Center, Houston. He is currently assigned to STS-107
scheduled to launch in 2003."

 http://www.jsc.nasa.gov/Bios/PS/ramon.html

Desert aerosols = suspended solids or liquids in gas over desert.

A multispectral camera for was used to record the existence of solids
or liquids in the atmosphere over deserts.

Questions: Deserts, where? What type of solids or liquids?

A reasonable suspicion is Col. Ramon photographed and measured the
dispersion of inert substances over the Middle East as part of a
weapons development program for the Israeli Defense Force.