Unfortunately I can easily think of several ways to make a simple but very effective dirty bomb using radionucleides and readily available household (or at least Home Depot) ingredients. You could in theory make a portable but low yield nuclear weapon given enough smoke detectors.
Personally I feel that the Texas official should be locked up pour décourager les autres, and a general tightening of the rules is required. We’ve probably all read the horror stories of medical cobalt-60 sources finding their way to scrapyards.
