Sixty-four people aboard a commercial airliner died Wednesday after it collided with a military helicopter midair near Reagan ...

Preliminary data from the deadliest U.S. aviation accident in nearly 25 years showed conflicting readings about the altitudes of an airliner and Army helicopter when they collided near Washington.

Humans have used their own waste as fertilizer for thousands of years, with varying degrees of success. In King County, it’s a growing business.