Today, a handful of visionary and courageous Members of Congress, led by Rep. Barney Frank, introduced the "Ending Federal Marijuana Prohibition Act of 2011," a bill that would treat marijuana the way alcohol is treated under federal law. It would give each state complete freedom to regulate marijuana in the manner it believes is in the best interests of its citizens. If a state wants to make marijuana available to patients, it can. And if it prefers to make marijuana legal for all adults, it can…