"I'm going to introduce in the Senate and the same bill will be introduced in the House, a bill to ban assault weapons. It will ban the sale, the transfer, the importation and the possession. Not retroactively but prospectively. And it will ban the same for big clips, drums or strips of more than 10 bullets. So there will be a bill. We've been working on it now for a year," Feinstein said on NBC's "Meet The Press" during a discussion about guns following Friday's deadly mass shooting as a Connecticut school.