Comment by ventana

Here's a quote from their terms and conditions:

  Governing Law; Venue.
  All claims arising out of or relating to the AdSense
  Terms or the Services will be governed by California
  law, excluding California's conflict of laws rules,
  and will be litigated exclusively in the federal or
  state courts of Santa Clara County, California, USA,
  and you and Google consent to personal jurisdiction
  in those courts.

Okay, I do indeed live in Santa Clara County, California, so if I ever get in a situation where I might want to sue Google Ads, I might as well try and see how local courts work, especially if the claim is small enough for the small claims court. For those who do not live here, it might be a prohibitive requirement.