Against the backdrop of the nation's largest Veterans Day parade, Democratic Gov. Andrew Cuomo announced this month he'd sign legislation making New York the latest in a fast-rising tide of states to OK therapeutic pot as a PTSD treatment, though it's illegal under federal law. Twenty-eight states plus the District of Columbia now include PTSD in their medical marijuana programs, a tally that has more than doubled in the last two years. The increase has come amid increasingly visible advocacy from veterans' groups. Retired Marine staff sergeant Mark DiPasquale says the drug freed him from the 17 opioids, anti-anxiety pills and other medications that were prescribed to him for migraines, post-traumatic stress and other injuries from service that included a hard helicopter landing in Iraq in 2005. In a sign of how much the issue has taken hold among veterans, the 2.2-million-member American Legion began pressing the federal government this summer to let Department of Veterans Affairs doctors recommend medical marijuana where it's legal. The Legion started advocating last year for easing federal constraints on medical pot research, a departure into drug policy for the nearly century-old organization. People ask, `Aren't you the law-and-order group?' Why, yes, we are," Executive Director Verna Jones said at a Legion-arranged news conference early this month at the U.S. Capitol. But "when veterans come to us and say a particular treatment is working for them, we owe it to them to listen and to do scientific research required."