I was wondering your thoughts on this issue of Canadian fresh water being exported to the US?

According to an article in the Star, "All it takes to set a NAFTA precedent is for one province to allow bulk export ... Once the taps have been turned on, they can't be turned off... In essence, no future Canadian government could legally provide water to its own citizens until American needs have been met- even in times of national emergency"

I brought this up in a tutorial I teach and the students seemed 'okay' with this idea, but I can't help but thinking its sounds like a disaster. And if we are exporting water- why aren't we helping those who actually need it - rather than those who choose to abuse it?