This came to me this morning from the Air Force Association. Go to the first link and start reading then start writing and calling your Senators and Congressman.
Click on
http://www.thepeopledecide.us/upload_bill/20090715-18585635H.R.3200.pdf to see the 1017 page text of H.R. 3200, a Bill introduced in the House on 14 July 09 by Dingell, Waxman, Rangel, et.al.; supposedly "To provide affordable, quality health care for all Americans and reduce the growth in health care spending, and for other purposes".
For Veterans & Military Retirees, you will find TRICARE mentioned on pages 77, 172, 218, and 434 in relatively remote context. Hard to tell where else there may be major implications. No mention of TRICARE For Life per se (so far), but the other purposes, interpretations, and evolving amendments can change that in a heartbeat.
You can find more detail and current status of the Bill at.
http://thomas.loc.gov/cgi-bin/query/z?c111:H.R.+3200: If you save this site or this Email, you may be able to come back to this site from time to time to see updates at the Bill Summary & Status file and evolving amendments if you don't have anything better to do.
Here is another site:
http://www.thepeopledecide.us:80/?bid=240 BillH
USAF Retired