I would not be surprised if DARPA were already in this space. They have been researching the affects of Sulforaphane on reversing autism in children. Surely they must have teams of people working on antibiotics.
Are there any scientists here from DARPA that can chime in?
The DoD has the DTRA (Defense Threat Reduction Agency) Chemical and Biological Technologies Directorate, which throws funding at things like antibiotics development. Achaogen, mentioned in the blog post here, has received DTRA funding in the past.
BARDA (a US HHS program) is also a huge player in this space.
Are there any scientists here from DARPA that can chime in?