I recall that this was the strategy that the 9/11 terrorists used to communicate. I suppose that the Richard Stallman approach is the next evolution of it.
Synchronizing mail (and other online assets) offline via a periodic push/pull process, similar to the USB-stick process.
For personal reasons, I do not browse the web from my computer. (I
also have not net connection much of the time.) To look at page I
send mail to a demon which runs wget and mails the page back to me.
It is very efficient use of my time, but it is slow in real time.
Also elsewhere he says that he rarely has an active internet connection, so presumably the demon runs and mailserver flushes during the window that his internet is on.
