The US Liquid Argon Detector Physics Program  
   
Liquid Argon detectors of tens of meters in length and a few meter drift provide very 
clean events, full of rich  detail. They give outstanding position resolution and good 
particle ID, allowing to provide insight into neutrino oscillation physics, as well as in 
their largest iterations to set new limits on nucleon decay rates and detect supernovae.  I'll 
survey the US LAr program. I'll focus on the data acquisition for MicroBooNE (the next 
LAr detector in the pipeline) and event reconstruction efforts for all three or four planned 
US LAr detectors.