Both HCl and chlorine are used industrially everyday throughout the world. Lots of materials that are potentially dangerous are used under safe conditions (f'rinstance, jewelers use cyanide as a cleaning agent, from what I understand of their craft). Don't know how much it costs, but my old high school stockpiled plenty of HCl tablets for use in lab.
The worries are marginal. Let's get some verification on this and tell the towel-heads to go pound sand up their %*$@&!!!! :-)