A lot of you might not remember the GA groundings of that day in 9/11. I remember it all very well and I can tell you that AOPA was the ONLY aviation organization I could see defending the GA world. At first only filed IFR enroute was allowed, then only duals. A student could solo under endorsement, pass their ride, and then be grounded as a newly minted private. It was absurd and it went on for 6 months. The last people to leave the ground were the ag planes due to the airborne anthrax application scare. Same with the banner towers. I believe that nearly 1/3 of all active flight schools in the US failed in the years after 9/11, including two where I was working.
AOPA also had a great deal to do with the driver's license as a photo ID program. The magazine alone is worth it! Great outfit
I think you are talking about the American AOPA. They are indeed very powerful (in America). I get their magazine too.