It represents "a data bank of every digital act by every American" that would "let us find out where every single American visited Web sites," said Rep. Zoe Lofgren of California, who led Democratic opposition to the bill.

"The bill is mislabeled," said Rep. John Conyers of Michigan, the senior Democrat on the panel. "This is not protecting children from Internet pornography. It's creating a database for everybody in this country for a lot of other purposes."