Feds Probe Possible Arabic-Type Markings On Southwest Jets

I'm not posting this to cause some kind of arab paranoia as I think we have plenty of that already. I am quite interested in the possibly complicated process involved if this is some kind of heat sensitive etching. WTF?

appeared to have been done with a chemical process that reveals the text once an auxiliary power unit is turned on and heats up the outside skin of the aircraft, according to Feldman.

Anything to see here? I mean I have to strip to get on a plane so how does this happen ATS?

losangeles.cbslocal.com...

no need for more than one thread. check this one by loam
www.abovetopsecret.com...