SPOILER ALERT! PLEASE DONT READ FURTHER UNLESS YOU WANT YOUR BRAIN TO EXPLODE AND NOSE TO BLEED!!!
Cap has been a Hydra double agent all along?! Holy fuck! WHAAAATTTTT? This can't be true. Supposedly there have been hints all along... Ugh...
Time interviews Marvel executive editor Tom Brevoort and he explains this whole INSANE story: http://time.com/4347224/captain-america-hydra-agent-marvel-tom-brevoort/