Abstract
"According to an Oct. 19 article by the Associated Press, Comcast has been actively degrading and
blocking BitTorrent traffic, amounting to "the most drastic example yet of data discrimination by a U.S.
Internet service provider." This is the latest and most clear cut incident illustrating the need for "network
neutrality" principles for the Internet. This factsheet provides a technological backgrounder on what
Comcast is blocking and how the company does it."