"World News Tonight With David Muir" Podcast - September 1st, 2014

Military Crash At Sea: A dramatic crash at sea involving a Marine Corps helicopter with 25 aboard.

Student Visa Loophole: ABC's Chief Investigative Correspondent Brian Ross investigates how some are exploiting a legal loophole meant for international students, and why that's raising terrorism fears.

Celebrity Hack Attack:  Several high-profile celebrities have become the latest victims of a hacking attack. So what's the risk of your own information on an internet cloud service?

Goodbye to Summer:  It's that time of the year when millions of American students head back to school.

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