Didn't answer - recorded message left that I need to call back so they can help with action by US Treasury re appearance before a magistrate, blah, blah, blah....
Obviously a scam. Left a name and number but couldn't make out the name due to some sort of accent.
Looks like they are "canvassing" the Atlanta Metro area today. We are in the Acworth/Kennesaw area. Got the same threatening call from some heavily foreign accented male. Obviously fishing. Reporting them and ignoring. Had these before. Spoke to County Sheriff and US Treasury before and there is "little they can do". Apparently they have never heard of the NSA and its immense capabilities.