The term ?critical infrastructure? means systems and assets, whether physical or virtual, so vital to the United States that the incapacity or destruction of such systems would have a debilitating impact on security, national economic security, national public health or safety, or any combination of those matters.
The term national security system means any telecommunications or information system Operated by the Federal Government or any contractor on its behalf, the function, operation, or use of which?
involves intelligence activities;"
So it seems to not imply private systems.
The problem: could Trump do this legally, and legally force Google not to disclose it? What can Trump do with the NSA data? I haven't seen any stories addressing this, beyond vague "concerns".
Furthermore, it misses the larger point that all of their data is readily and easily collected by the NSA already.
Such assertions are counterproductive. They ignore actual statements by google regarding their efforts to improve security against US agency snooping, or Apple's somewhat valiant if ultimately fruitless attempts to defend the iPhone's security against national security interests.
We need to specifically call out bad actors and actions, such as Yahoo's eagerness to CC the NSA on all our emails. We also need to reward positive action with praise. Both are methods to provide the incentives for companies to act in our interests: the companies can point to praise to argue that their principled stand makes financial sense, and the employees deserve the recognition by their peer group.
The wider public is completely ignorant about this, and this should be written up and publicized more.