Pubdate: Fri, 26 Feb 1999 Date: 02/26/1999 Source: USA Today (US) Author: Peter McWilliams Drug Czar Barry McCaffrey's favorite phrase is "at the end of the day." Rumor has it that the end of McCaffrey's day as a drug czar is at hand. McCaffrey knows the drug war can't be "won" and that after he has earned enough purple hearts, it is time for a new assignment ("DEA chief: Drug fight lacks desire," News, Feb, 19). I, too, am at the end of my day. I am an AIDS patient who for two years successfully used medical marijuana to keep down the life-saving, but nausea-producing "combination cocktail" therapy. I was arrested last July on federal medical marijuana charges. Deprived of the only anti-nausea medication that seems to work for me, my AIDS is out of control. Meanwhile, I am facing probable death. McCaffrey's holy war against medical marijuana set the federal tenor. I hope that at the end of his day he reflects on the unnecessary misery his continued opposition to medical marijuana has caused. Peter McWilliams, Los Angeles, Calif.