GWEN IFILL: Explain to our viewers how what you are planning to introduce would have changed what happened in Newtown, Conn.
DIANNE FEINSTEIN: Well, over time, that weapon would be much less available.
What we're trying to do is ban the sale, the manufacture, the transfer, the importation of assault weapons. And it gets quite technical. And I won't go into that right now.
Grandfathered weapons that people already have, subject those weapons either to licensing or to a trigger lock, and spell out those grandfathered weapons, which would be over 900 in the bill, so nobody can say, oh, we took our -- their hunting weapon away.
Then I would be able to say, here's your hunting weapon. It's specifically exempted in the bill.