Here we observe a side affect of the NSA/GHCQ operating in a manner which always gives offensive capability precedence over the defense of civilian systems.
In case you haven't made the time yet -- ACLU's interview of Snowden at SXSW was excellent and dives into the implications of this: https://www.youtube.com/watch?v=UIhS9aB-qgU
On another (ironic) note this PSA from the US government is about 2 years late: http://www.bbc.com/news/technology-26985818