I'm not sure if this is anything or not but we have two separate posts of two different incidents with references to TSO gloves alarming....
http://www.flyertalk.com/forum/15742072-post1.html
And from the above post
For whatever reason, the smurf's gloves triggered an alarm on the sniffer,...
http://www.flyertalk.com/forum/15738817-post13.html
And from the linked article in the above post....
After searching Stacey, the agent scanned her gloves with some device and informed my wife, “The gloves beeped, so you need to be screened further in a private room.
Question for our resident TSO's: With a swab, "the machine" tests the swab for explosives but if you are only doing a patdown, do you now test your gloves for ETD after the patdown? If yes, I can see a myriad of false alarms being caused simply by the combination of type clothing material being patted down and any dyes used in said material not "playing nice" with the sniffer.
now otoh, but wouldn't it be a kick in pants if the TSA ordered a bad batch of gloves that are now giving out false positives