CNN to mark 9/11 anniversary online

CNN will mark the fifth anniversary of the Sept. 11 attacks by replaying on the Internet the cable network’s coverage of that day’s events.

Viewers can watch how events unfolded starting at 5:30 a.m., minutes before the first reports of an airplane hitting the World Trade Center. The feed will run in real time, as the network showed it five years ago, until 9 p.m.

For the day, CNN will make its online video service, CNN Pipeline, available for free. Normally, viewers pay $2.95 a month or $24.95 a year for four separate video feeds.

Online viewers will be able to watch live reports of memorial services through one of the feeds. So that viewers won’t accidentally stumble upon graphic footage from 2001, the replay feed will be covered with a notice instructing users to click only if they want to watch.