INDIAN LAND, S.C. — Students in every middle and high school in Lancaster County will now have to walk through weapons scanners before they enter the building. Leaders hope that change will keep ...

LONG BEACH, Calif. — President Donald Trump’s Department of War is betting big on a “new-guard” of weapons manufacturers in his push to expand domestic defense production. After decades of legacy ...

Does the technology prevent shootings? The evidence is thin. Critics suggest security companies are preying on fear.

The consensus of the committee is that more effort will have to be devoted to future undersea warfare operational concepts and to operations and systems analysis of the enabling technologies to ...