This recent presentation from Kepler Airospace claims that Einstein was on the right track and a goes even further, stating that gravity can be manipulated through EM. I've graduated in Physics but not quite sure what to make of it.
If all major governments keep it secret, the conclusion would be that the phenomenon wants it that way. The US wouldn't be in charge. But apparently something changed.
There may not be much of a difference left then between machines and biologicals. Generations would alternate like a jellyfish does between polyp and medusa. No need for generation ships.
In the country I work it goes like this: the employers are members of an IT association, once a year each employer sends over the anonymous salaries for each job title. The associations aggregates them and sends back the distribution, which HR then uses as a reference. Similar result, but no direct collaboration between employers needed. You can even buy the report for each position as an employee for a fair price.