RE:Cause of meltdownThis is not a new story, the info has been circulating for awhile, but if US doesn't want Canadians to come in, they will make a reason... In reality, they don't want pot to cross US border, that's period. You can't forbid people to come in because of that reason, they are people working in pharmaceutical industry and they work with drugs that have stronger effect than MJ... It's just stupid...