A new daily HIV prevention pill, Truvada, is being tested on thousands of men and women in Africa with mixed results. As in previously studies it proved to be highly effective in men. But testing has been halted on women because itâs wholly ineffective. Also, where does that huge military budget go? Sometimes it goes to developing new gear to protect our troops. And lately, the focus has been on protecting their privates. Battle-ready underwear is the latest safety gear.