Why not all three? Everyone has showed up to the data party in the US as far as I can tell. Even the political parties are independently hoovering up data for their campaign strategies.
> During the 2012 campaign, Barack Obama’s reelection team had an underappreciated asset: Google’s executive chairman, Eric Schmidt. He helped recruit talent, choose technology, and coach the campaign manager, Jim Messina, on the finer points of leading a large organization. “On election night he was in our boiler room in Chicago,” says David Plouffe, then a senior White House adviser. Schmidt had a particular affinity for a group of engineers and statisticians tucked away beneath a disco ball in a darkened corner of the office known as “the Cave.” The data analytics team, led by 30-year-old Dan Wagner, is credited with producing Obama’s surprising 5 million-vote margin of victory.
In the US the government tracks everybody, and they're probably better at it than in the UK. Remember Snowden? He didn't work at Google. Both the government and opportunistic companies track everything they can.
Or a corporation that is legally required to delete the footage a few days later and can only process it to resolve customer complaints and to bill damaged cars (EU).
