Haleigh had never been able to walk or talk. But freed from seizures in Colorado, "She said 'Mama' for the first time," Cox said. "She's playing with puzzles; she's walking. She's almost being a normal child." Despite all the good news, Cox is living in limbo. Her husband, a paramedic, couldn't afford to leave his job and pension; he still lives and works in Forsyth, Georgia. The family is relying on charity to keep their Colorado apartment for the next few months; beyond that, the future is uncertain. A bill being introduced Monday in the U.S. House of Representatives could be Cox's ticket home. The three-page bill would amend the Controlled Substances Act -- the federal law that criminalizes marijuana -- to exempt plants with an extremely low percentage of THC, the chemical that makes users high. Gupta: Why I changed my mind on weed If passed, it would be the first time that federal law allows any medical marijuana use. "No one sho