that's an extraordinary story, thank you for providing some more details, this is the first and only one we've heard like this, ever. did you get any of the TSA staff's info? we'd like to talk to them directly since traveling with a AA battery charger (assembled kit or bought at the apple store) does not warrant "the Homeland security bomb detail". at the most a quick swab, or worst case, removing the batteries would have been the usual and most reasonable thing to do. we don't know any more details than what you've told us, so we won't guess if there are any circumstances outside what you provided.
the TSA is there to serve and help all of us, if they need to be educated on what harmless hobbyist electronics are that amazing people are making and sharing, it's our job to help them too.
please email email@example.com
with the details, we will follow up with with the indianapolis airport.
just to put it in context, both ladyada and i travel with bags full of kits, carry on and checked on, around the world, and we also look like gothy weirdos - we've never had anything even close to this occur. when i was full time at MAKE magazine i was also traveling around the world with all of these types of items and the only thing that was ever odd (once) is a TSA agent asked if they could keep my copy of MAKE magazine they saw in my bag since they liked to do electronics themselves too (i gave it to them and my biz card). the maker community is chatty, if this was a common occurrence we'd all know about it. the only close one i am aware of this story from awhile back:http://blog.makezine.com/2011/08/10/tsa ... -mint-tin/http://blog.tsa.gov/2011/08/wierd-scien ... made.html/
as far as policy goes, here's a direct quote from the TSA:http://blog.tsa.gov/2009/03/traveling-w ... dgets.html"We're not implying that you cannot travel with these types of items, we're just pointing out that they could be of concern, or possibly even hold you up a little bit. Listen, we think these things are cool too, but this is just a friendly "heads up" and not a threat." - Bob (TSA) EoS Blog Team
adafruit support, phil