Remember the Syrian Internet outage of 2012 ? ►http://blog.cloudflare.com/how-syria-turned-off-the-internet
It wasn’t a cut cable and it wasn’t the Syrian government deliberately blocking access either...
Snowden reveals that it was a NSA Taylored Access operation inadvertently bricking the core router they wanted to subvert :
▻http://www.wired.com/2014/08/edward-snowden/#ch-2