That said, it'd be in their best interest to stop this now, because even if this doesn't impact them, slowly but surely the laws will be amended to apply to everyone.
I would imagine a two-phase approach: phase one would be the black-bar-type-doodle logo, phase two would be shutting things down. Whether phase two would happen would depend on how likely the bill is to pass, how well phase one went, and how much it would cost to police if it passed.
http://thomas.loc.gov/cgi-bin/query/F?c112:1:./temp/~c112dI2...:
(a) Definition- For purposes of this section, a foreign Internet site or portion thereof is a `foreign infringing site' if--
(1) the Internet site or portion thereof is a U.S.-directed site and is used by users in the United States;
(2) the owner or operator of such Internet site is committing or facilitating the commission of criminal violations punishable under section 2318, 2319, 2319A, 2319B, or 2320, or chapter 90, of title 18, United States Code; and
(3) the Internet site would, by reason of acts described in paragraph (1), be subject to seizure in the United States in an action brought by the Attorney General if such site were a domestic Internet site.
`foreign infringing site' = "if such site were a domestic Internet site"
The only reasonable response to that is WTF.