(CNSNews.com) – Homeland Security Secretary Jeh Johnson said Thursday that a gun is “an instrument of terrorism” and that “sensible gun control consistent with the 2nd Amendment” is “a matter of homeland security.” “I believe that sensible gun control consistent with the 2nd Amendment and consistent with a responsible gun owner’s right to own a gun is a matter of homeland security,” Johnson told the Senate Judiciary Committee in response to a question from Sen. Patrick Leahy (D-Vt.) on whether it was “a significant security vulnerability” that terrorists can get “powerful firearms” and whether this is being exploited by those...