Two researchers, one in Cleveland and the other in Israel, appear to have developed an anti-radiation sickness medication. They have completed several tests and believe that the product could win FDA approval within a year or two. The medication is derived from a protein found in intestinal bacteria and appears to have no significant side effects.
Yes, I know this isn't a blog for medical experts, and I certainly have no particular expertise in that domain. But anything that reduces the impact of nuclear weapons and dirty bombs has tremendous strategic significance. Which is probably why DOD is helping to fund the project.