In a small series of tests, the Associated Press has concluded that U.S. cable operator Comcast is using filtering technology to actively prevent users from uploading files via the popular file-sharing application BitTorrent.
To test claims that Comcast was somehow blocking file-sharing traffic, the Associated Press attempted to download the (uncopyrighted) King James Bible from two computers—one in Philadelphia, and one in San Francisco—both of which were connected to the Internet via Comcast service. The AP reports that in two out of three attempts, the download was blocked altogether, and in the third test the download began only after a ten minute delay. When the AP attempted to upload files requested by other BitTorrent users, the connections were also blocked.

