On a scale of 1 to 10, in which 1 is the least important and least far-reaching and 10 is the most important and most far-reaching, the controversial parts of the Patriot Act renewal were about a 2. Nonetheless, the Bush Administration struggled for months to push through the legislation. Congress held hearings on almost every teeny tiny piece of text...
Compare that to the developing politics surrounding the Specter NSA bill, which was voted out of the Senate Judiciary Committee. On the same scale of 1 to 10, in which 1 is the least important and 10 is the most important, the Specter bill is somewhere around an 8. The Specter bill would reorient the basic role of the legislative branch in national security surveillance. In terms of importance, its provisions dwarf the provisions in the Patriot Act renewal by orders of magnitude.