“even where your eyes are looking on your phone.”
Some company’s patent rights are possibly being infringed.
Amamzon, Google and Facebook have been using eye tracking with test users for more than a decade and hold many us patents around generation of usability statistics. They generate heat maps of 1, 5 and 10 seconds after page render attempting to determine why pages are sticky and why pages are clickthrough. A hardware light on camera power on is something that smart phones long dropped because of the face unlock features.
If the senate is interested in anything it is because one of their corporate donors is concerned Xi Corp is stepping in on their exclusive market.