introducing a new pill that would let states that legalized medical marijuana operate legally under federal laws. currently federal laws leave those who prescribe, use and sell medical marijuana vulnerable to arrests. they want patients including veterans receiving care from va facilities to have access to the care they need without fear of prosecution. still to come in the "newsroom" -- >> i didn't have a template for a one armed television journalist. i didn't know what i could do. >> learning to cope with the loss of an arm. the emotional road to recovery for my friend, miles o'brien. major: ok fitness class! here's our new trainer ensure active heart health. crowd: yayyyy! heart: i'm going to focus on the heart. i minimize my sodium and fat... gotta keep it lean and mean. pear: uh-oh. heart: i maximize good stuff like my potassium... and phytosterols, which may help lower cholesterol.