The last time I read https://www.schneier.com/ perhaps 2 or 3 years ago, he mentions that using 2 computers is relatively save. One computer using all the anonymous abilities we have for mailing and surfing and just a second computer for sharing data between the Internet and a disconnected PC, using a brand new "unchecked" USB stick. IMO we at least should use a computer in the middle and inspect such an USB stick.
