It is a legitimate, practical concern whether visiting somewhere will increase your risk of attacks on your devices and data. I was struck by a New York Times article from 2012, before organized governmental hacking was the topic of the day, setting out some of the precautions that people took.
This was particularly focused on hacking by China (something we in English-speaking countries had learned to hate and fear over the years), and I found it sad to learn that the same precautions can be appropriate for visiting liberal democracies.
http://www.nytimes.com/2012/02/11/technology/electronic-secu...
This was particularly focused on hacking by China (something we in English-speaking countries had learned to hate and fear over the years), and I found it sad to learn that the same precautions can be appropriate for visiting liberal democracies.