I and many of my mates handled DU rounds on the Nellis Range complex - cleaning up after the A 10 AT&E. NO one of us (I keep in touch with more than a few) have shown any ill effects.
OTOH, my wife grew up Central Utah, downwind from the Nevada Test Site and had lost fully half of her graduating classes (of 1972) by 1986 to various cancers (Lung, thyroid, bone, ovarian, etc). As always, YMMV.
Yep. My sister (freeper monkey face) and I are Downwinders, too, and grew up in Central Utah during the entire decade of the Fifties. We all have ovarian and endocrine/thyroid problems, and I am a breast cancer survivor. We were given potassium iodide tablets in school for years, monthly, as I recall. "Chocolate" flavored, 1 tablet for little kids, 2 for older students.
If I understand correctly, DU radiates only alpha particles, which don't even penetrate skin or clothes. Beta and gamma ray emitters are much more dangerous to handle, and nuclear explosions and reactors can emit neutrons that can make ordinary elements radioactive.