User blog comment:James12708/Reapers VS. Forerunners VS. Angels from Darksiders VS. Humanity from Halo VS. Council and humanity from Mass Effect VS. Imperium of Man/@comment-50.80.96.33-20130111215612/@comment-1388547-20130112012403

If I recall correctly, indoctrination is a very broad-front attack: infrasound, ultrasound, electromagnetic waves, nanomachines, and probably more methods that I don't recall at this point. Shields would probably help, but they wouldn't stop all of it. A good, fully-sealed suit of armor that's also capable of blocking electromagnetic signals would help more, but indoctrination is always portrayed as an insidious, unstoppable process; I'd be uneasy about anybody spending significant amounts of time near Reaper hardware, no matter what protective gear they're wearing.