purchase a beer at a restaurant, fought allowed to purchase a handgun but can purchase an assault rifle? >> that's exactly why senator dianne feinstein plans to impose an age requirement, 21 and oler to buy guns like ar-15, often the weapon of choice for mass shooters in places like florida. in some places, they're raffled off for fund-raisers like for firefighters in sacramento in this last weekend. nancy lugo walked out. >> it's the timing of seeing that weapon after reeling in the grief of the rest of the country in the deaths of the children in florida. >> i believe in the second amendment and there's a solution to protecting our students and teachers while still letting people have firearms and guns. >> at the state level, 22 states are now looking at allowing guns on school and college campuses,