Lawmakers on a House subcommittee are demanding a briefing on the incident and what steps the Pentagon is taking to prevent another deadly collision.

The rebels are almost daily in the habit of showing themselves on the high bluff across the Potomac, which ... back from the Virginia side of the river, and among them is Col.

Because of prolonged cold weather, pancake ice has formed on the Upper Potomac River near Great Falls. The circular slabs have been spinning and colliding with one another for days while trapped ...