The literature is probably not illegal, it would have to be very specific, such as plans for a terrorist act, for it to be. But the AT-4 should have the BATFE burning the place down, as they would for any citizen found in possession of such a device.
Read again, it was just a fiberglass tube. Nonetheless, I hope these people are being investigated.
I need to read the article. It was a used launcher tube. Essentially a fiberglass tube. No rocket. Thus no destructive device, and the BATFE could care less.
Anyone familiar with the VietNam War should feel the chill from the then considerd worthless LAWS tubes that were thrown away on the spot of discharge. Those “paperweights” were used time and again by Charlie to fire all kinds of stuff back at us.