As of 9/11 and the vast increase in massively expensive anti-terrorism efforts by the US Government, I would imagine any use ,possession, or attempted possession of any sort of pyro-technic or explosive device/chemical, or instructions/directions to the same could get you investigated or arrested pretty quick. Combine this with an interest in Confederate or Nazi memorabilia, and you might begin to see where our hugh and highly efficient
police agencies might soon be kicking down the door of your "terrorist hide-out" looking for OSAMA, somewhere in the middle of America
So be careful, and stay away from bombs, they are not nearly as PC as they were when I was a kid
, and who would want all their stuff confiscated and a lovely get-away vacation at Quantanamo bay until they possibly figure out you are a re-enactor and not some nazi/klan/terrorist nut.
High Guys, my first visit and post in this section, hope I ain't too off the wall.