The Chalk River facility is currently closed for repairs and the government has announced Canada is getting out of the medial isotope business.
Harper is in Washington for a two-day conference on nuclear weapons.
The Nuclear Security Summit, hosted by U.S. President Barack Obama, is expected to be the largest gathering of world leaders in the United States in decades.
Notably, the leaders of three countries which have not signed the Nuclear Nonproliferation Treaty, Israel, Pakistan and India, are all attending the summit.
Obama has taken a strong non-nuclear proliferation and disarmament approach since taking office.
full article http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20100412/nuclear_summit_100412?s_name=&no_ads=

Whoa up a minute here! In my naiveté, I thought we mined uranium and processed it in Canada. So what is this about "returning" to the USofA?
BTW - good question about the disappeared scientist.
Duuuhhhhhh!!