Replying to myself now that I've had a chance to research, here's the relevant link: http://torrentfreak.com/how-nsa-proof-are-vpn-providers-131023/ http://torr

Replying to myself now that I've had a chance to research, here's the relevant link: http://torrentfreak.com/how-nsa-proof-are-vpn-providers-131023/ http://torrentfreak.com/how-nsa-proof-are-vpn-providers-1310... partway down the page, in the section on National Security Letters and Private Internet Access. Quoting Andrew Lee: “However, to remain in the US, meant, as well, the relinquishing of my access to the PIA systems/network. Administrators, developers and co-founders everywhere can relate to the difficulty of doing so, but the reality is that it was a requirement if I was to remain here. This policy is in place, and relinquished access I have.” There's significantly more information in the original article.