This may not be the most recent Edward Snowden revelation, but it seems to be the most severe to me so far:
If there hadn’t been so many previously shocking revelations so far, this one should have been a total nuclear shocker. It seems that we have accustomed ourselves to the bitter realization that the NSA and possibly other secret services are penetrating our privacy on a really deep level.
The real question is: Should we do anything about it? And if yes, what can we actually do about it? Switch to open source hardware?