Many analysts believe the most important part of these Summits are not the official statements but the unofficial meetings that occur on the sidelines. Everyone wants to know what Obama will say to Chavez, but the other meetings will be equally important if less high profile. Will Piñera talk to Morales about border issues? Does Lugo have anything to say to Kirchner given recent trade disputes? Will Humala and Santos talk about counter-insurgency and Shining Path-FARC issues? Do Calderon and Dilma talk about the upcoming G20 meeting? Do Ortega and Chinchilla speak to each other at all? With 528 potential bilateral meetings among leaders, plus dozens of other cabinet and other government officials who can talk, there is a lot that can happen on the margins. Smart reporters and analysts at the Summit and abroad are going to be looking for signs of bilateral discussions among countries that aren't always in the same room. That's where real work is most likely to get done.