How do we test to see which laws congress read or didn't?
And I'd wager there are some congressmen who read everything and others who read none of it.

But let's not kid ourselves. It would have very little bearing if they did read it because the soundbites are what matters.
No one will vote against the "For the Children" plan even if it involves dumping toxic waste on children.
And the bill that does something that sounds bad even if it is for a greater good will destroy the politician's career regardless of the specifics of the bill.

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"Man lives in the sunlit world of that which he believes to be reality. But unseen by most is an underworld, a place that is just as real... but not as brightly lit... A DARK SIDE!"
-opening from Tales From the Darkside