Witnesses testified on a proposed assault weapons ban introduced by Senator Dianne Feinstein (D-CA) that would prohibit the sale, transfer, importation and manufacturing of “military-style assault weapons” and high-capacity ammunition magazines. She showed videos of guns as she gave details of the bill. There was tear-filled testimony from residents of Newtown, Connecticut, video, some heated exchanges over both the rights of gun owners and the effectiveness of gun bans, and audience applause. Senator Feinstein, who was chairing the hearing, called for civility.