http://www.usatoday.com/news/world/2004-10-29-bin-laden-tape_x.htm

CAIRO (AP) — The Arab television station Al-Jazeera aired a video of Osama bin Laden on Friday directly admitting for the first time that he carried out the Sept. 11 attacks and promising to outline "the best way to avoid another Manhattan."
It was the first footage of the al-Qaeda leader to surface in more than a year. The video showed bin Laden in traditional white robes, a turban and a cloak reading from papers and standing in front of a plain, brown cloth background.
"We decided to destroy towers in America," bin Laden said.
He said the attack was carried out because "we are a free people ... and we want to regain the freedom of our nation."
He also accused President Bush of "misleading" the American people three years since the 2001 suicide airline hijackings that hit the World Trade Center towers and the Pentagon.
The Qatari-based channel did not say how it had received the tape nor how it had concluded that it was authentic.
The channel has previously received audio- and videotapes from people linked to al-Qaeda.