determined opponents, the head of the sierra club tell me why he disagrees. next up, hugo chavez is dead. will his successor continue chavez's antiamerican, antiwestern, anticapitalist ways or is this the beginning of a new venezuela? we have a great panel. including moses nian. also, rand paul is worried about americans killing americans on american soil. he's right. but there's another huge problem with drones we need to start worrying about. i'll explain. first, here's my take. later this year the obama administration will have to make a decision on whether to green light the keystone pipeline. that's the 2,000 mile pipeline that would bring oil from the tar sands of canada to the gulf of mexico. i'm sure you've heard all the dire warnings about it. but another way to think about this, is to ask, what would happen if the pipeline did not go forward? the department of state released an extremely thorough report that tries to answer just this question, and it concludes basically that the oil from these tar sands would be developed at about the same pace whether there was a pipeline or not.