At last, the airlines have issued waivers for Hurricane Sandy. Here are American's.
Now, you have a chance to proactively switch your plans and avoid this giant mess. My Airline Crisis Survival Guide (don't worry, it is free and a click away) shows you how.
Don't even think about flying into the Northeast Monday through Wednesday. If you must travel, fly around it. For example, if you are scheduled to go on United to Germany via EWR, see if they will switch you to ORD.
UPDATE: Moments after posting the above, United told us Sandy "may" affect travel.