Let me suggest shovelling bullshit as a job for Harper, after all he has produced enough of it, he should have to clean it up :p To insult a national leader like Chavez when he dies, wonderful way to create a diplomatic incident and embarrass Canada internationally, again! Chavez will be missed. His achievements are legendary. I do find the implication that Chavez was poisoned by the American Government interesting, especially with the Rumour I heard about Jack's death. Not saying I believe either, but this eliminates the two greatest threats to the right in the Western Hemisphere. I plan on keeping an eye on Mulcair's health and the other lefty leaders in this hemisphere, just in case.
As an aside, I don't think inducing cancer would be an effective way to poison an enemy. For one, it would take too long, and it's no guarantee. For another, the death of the person would really sadden the public in the affected country, and they would be even more attracted to the policies of the departed leader, which would kind of backfire if reversing those policies was your goal.
ETA: Having said that, given the lengths to which powerful people to to obtain and keep power, I can understand why people would believe such things.