That depends on who does the surveillance. Stopping to use American services is a simple start, and it is much easier to act against surveillance in your own co

That depends on who does the surveillance. Stopping to use American services is a simple start, and it is much easier to act against surveillance in your own country than it is to act against surveillance by the US. Of course, this only helps if your ‘home area’, i.e. the area you trust to not intercept your messages and where you can act meaningfully to ban such interception, is sufficiently large – given the size of the EU (for example) even after Britain is out, that shouldn’t be too much a problem. For everything going outside this green zone, encrypted communication is the go-to-response, be that PGP, OTR or at the very least HTTPS.