While I applaud the TSA's decision to lift some of its silly travel bans, these FAQs from their website are pretty amusing:
Q. Why is breast milk not a threat?
A. Breast milk is a medical necessity and it is being classified as such. It must be declared at the checkpoint.
Q. How do you ensure liquid explosives disguised as breast milk or medications are not brought through the checkpoint?
A. Since September 2006, certain liquid medications have been permitted
at the checkpoint as long as they are declared to security officers and
are subject to additional screening.
Q. Do passengers carrying breast milk need to taste it to prove it is not a liquid explosive?
A. No. We will not ask a traveler to taste breast milk.