For those wondering why he's not suing the government:

Suing a government entity is a very long and costly affair, and is fraught with difficulties.

Suing a company is MUCH easier by comparison. Unlike governments, companies tend to be very sensitive to bad press, and thus much more likely to yield to legal pressure.

Therefore, your most promising tactic is to use the suit against the company to build a war chest and establish official records of fact that can then be drawn upon in the longer government campaign.