IIRC this caused a "problem" when the KAL 747F crashed at Stanstead about 10 years ago. The recovery took a while as they had to dig some tonnes of earth to recover the lost DU ballast weights.
when the 747 crashed into a large block of flats in amsterdam a few years ago there was a story in the press it was carrying some radioactive material ,this was by the look of it d/u that had been heated up to a great degree and at that became radioactive
Typical hysteria from people that hear the word "uranium" but somehow never hear the word "depleated".
I worked with and around "depleated uranium" for years and as of my last physical about three months ago I and perfictly healthy for a man my age (old), what ever that means?