The first rule of gov't spy programs applies to this development: Since we've heard about it, it's old tech that they were using at least 10 years before the article says they were. Naturally, this means the real story is to break 15 years from now when we hear they've been using drones to listen to electronic signals on computer hardware to figure out exactly what people are doing on their computers without ever having to come near the devices.
The reason this was useful is because they had to physically plug something into the intended target, this meant they had to choose their target wisely rather than spying on everything in and out of the country.
In other news sources I read NSA has intercepted delivery of items before they reach the end user, done whatever they do, rewrapped indistinguishable to original then shipped them to end user. Also from what I read US military hardware is not supposed to use any chips etc. made in other countries like China. They did some audits though and found out some of their items (god knows, they have everything from ballistic missiles to whatever) had Chinese made chips in them.
Sad that a nation that once embraced the constitution and liberty is now alienating all of their allies by their "war on terror". Between drones killing civilians and American citizens and prisons with no judicial process and the overzealousness of the NSA, the USA may find their only ally is themselves.