DOJ is part of the executive branch and is led by the attorney general, who is directly appointed by the president.

Battle.net has been around for forever too (longer than Counter-Strike), and you can still play Diablo I through it. Blizzard is probably the only game developer that has less chance of dying than Valve, so Battle.net isn't going anywhere.

A class that you apparently haven't taken, unless you're claiming that there's a measurement error in the vote count. Hint: exact numbers have infinite significant figures.

Yes, but that wouldn't make any money. It'd also probably be violating anti-trust legislation, since they would be abusing their operating system monopoly to crush Apple.