Just to back up what Danny is saying here. As part of a number of groups that do digital and physical security training for journalists and human rights defend

Just to back up what Danny is saying here. As part of a number of groups that do digital and physical security training for journalists and human rights defenders, most of us have/do recommend the use of live CDs like TAILS etc. Unfortunately my experience has shown that it is very very difficult to get anything other than a small percentage of journalists or HRDs using them for any period of time - especially in countries where IT literacy levels are low. Linux (and also PGP) is just too much of a cultural shift for most people. I mean even a security conscious guy like Glen Greenwald didn't even bother to learn PGP or Live CD usage in the first few months of Snowden reaching out to him. It is a gap in capability that many of us (including Danny at EFF) are working on day and night to try and bridge though!