The bills primarily differ in what a state would have to do to be allowed to collect sales tax from out-of-state vendors and the size of the de minimus rule to exempt small vendors from collection.
As a general rule, younger case officers do better intelligence-collection work than older colleagues, whose zeal for Third World field work declines precipitously as their knowledge and expertise in CIA bureaucratic politics increases.
Meanwhile, privacy advocates argue that the bill's exemption for "operational" collection of data--allowing those practices to take place under an "opt-out" rule--gives advertisers far too much leeway.