The cyber cold war between China and the U.S. just got a little chillier. Twice this year, China demonstrated its ability to "substantially manipulate" the Internet, a congressional commission said in a report issued on Tuesday. In one incident, traffic headed to 15 percent of the world's websites was redirected through Chinese servers for about 20 minutes.

The high-level hijacking included bits and bytes headed for the U.S. Senate, the Army, the Navy, the Marine Corps, the Air Force, the secretary of defense, NASA, and other government offices, along with commercial entities like Dell, Yahoo, Microsoft, and IBM, the report said.

Chinese officials disputed the findings. But several technology firms said
they charted the hijacking in April.

Read more in Bob Sullivan's Red Tape Chronicle blog.