Nancy A. Youssef is a national security correspondent whose reporting has focused largely on the U.S. military and the Arab world.

Ernesto Borges Pérez, a former Cuban counterintelligence officer who served 27 years in prison after he was convicted of spying for the U.S., was released Thursday from the high-security Combinado del ...

Do some horror movies use sounds of a specific frequency to amp up the scare factor? Yes. Can infrasound and ultrasound ...

LISTEN LIVE: SCOTUS considers religious freedom as parents challenge LGBTQ books in the classroom ...