CSA is in 2B and AA is in 2A. Terminal 1 is very small and circular. Terminal 2 goes on forever with all these different "Halls." 2A is across this huge parking lot (I think that what it is) from 2B. I looked at the Paris Forum and there was a sticky note about connecting to the different terminals.
There is a way for me to connect to 2A without leaving security -- it's a bus ride that goes to the different terminals.
Thank you.
David