Absolutely, there's just no question that when many of our best students leave, the States looks better. There's often better research funding and more opportunities for them there. We lose people.
I just came back from Silicon Valley a while ago, and I met with the Canadian Club at Stanford University. I met an awful lot of graduate students from Canada, and I was asking them if they wanted to come back. Virtually every one of them said they'd love to come back, but we don't have the opportunities in Canada. Yes, it's a big problem.