New marijuana businesses and medical services are cropping up all over, despite the fact that our U.S. Attorney General still thinks Reefer Madness was a documentary. Public sentiment is continuing to turn against the plant's Schedule I classification by the U.S. Drug Enforcement Administration, as 26 states, including Texas, have some kind of legal marijuana law on the books. The Southwest Cannabis Conference & Expo will host thousands of professional industry experts and entrepreneurs to discuss issues and innovations in the medical cannabis world. The conference starts at (when else?) 4:20 p.m. Thursday, April 20, with an open 420 party at Lola’s Saloon, 2736 W. 6th St., Fort Worth. The conference moves to the Fort Worth Convention Center (1201 Houston St.) from Friday through Sunday, April 21-23. A special Pro Athletes Pro Cannabis panel, featuring ex-NFL players, will discuss the effects and changes needed on pro football’s marijuana policies at 6 p.m. Saturday. Tickets for the full conference registration is $150 per person or $100 for a one-day pass. Passes for the exhibit hall only are $50 per person. Tickets can be purchased online at SWCCexpo.com.