Face masks rated for ballistic protection cover a small area with thick composite material, which raises the question of what ...

On July 4, the nation’s 250th anniversary, a mysterious group of young men in khaki pants, navy blue shirts, logoed baseball ...

Two suspects are in custody after police said they went on a crime spree in Allegheny and Westmoreland counties on July 9.

It is the kind of development once seen only in science fiction: An artificial intelligence system, trained to probe for ...