Really, you shouldn't have any problems.
The reason Brian had his luggage blasted open is that, in an X-ray, the mic really does look like a pipe bomb.
http://www.placidaudio.com/Earlier this year, I flew to and from L.A. with a green bullet, a tape echo, two pieces of rack gear, an electro harmonix microsynth, and three guitar pedals... in checked luggage, and had absolutely zero problems.
Played a gig at the Playboy Mansion. How NOT INDIE is that?