Federal authorities have warned local law enforcement officials across the country about a heightened concern involving possible terror attacks targeting the July 4th holiday, a U.S. law enforcement official said. While there was no specific or credible threat of attack, the official said the intelligence bulletin...

U.S. law enforcement officials are boosting security measures ahead of the Fourth of July holiday, authorities said Tuesday. More police are being deployed to prominent locations because of concerns of terrorist threats, including some from suspected ISIS supporters in the U.S. who may heed the group's...