For those not in the know, the Marvel Comics character Captain America was a super soldier. A weakling, Steve Rogers, was used as a guinea pig in experiments during World War II to create a super soldier. He was given a serum that turned him into a superhero.
The Special Operations Command, according to this article, wants to do the same thing with special operations soldiers. The idea is to experiment with regimens of supplements and performance enhancing drugs to expand the limits of human endurance and strength.
I have concerns over this approach. The selection process for Navy SEALs, et al. is already designed to have the cream rise to the top. Only the most mentally and physically tough make it. Given that every drug has side effects, I would not want operators being forced to adulterate their bodies with cocktails of drugs to create super soldiers. They already are super soldiers–elite warriors.
This seems to be an expedient to be able to get more of them. There seems to be an insatiable demand for operators in the Global War on Terror (GWT). Elite athletes are few and far between. Perhaps the objective is to either extend the careers of warriors (much the way Major League Baseball players in the steroid era were using PEDs to deal with injuries and age) or to allow those not physically endowed to get through training able to make it.