A sweeping gun-safety proposal unveiled Tuesday at the Statehouse faces an uncertain outlook. Legislative leaders say new steps are necessary in the aftermath of the school shooting last year in Newtown, Connecticut. But the gun lobby remains powerful, and past efforts to strengthen gun laws in the legislature have faced an uphill battle. Teny Gross views the issue through the lens of a former Israeli army sergeant who now leads the Institute for the Study and Practice of Nonviolence in Providence. He sat down this week to talk about why gun advocates should be a part of reducing gun violence in Rhode Island.