Last week, US intelligence experts said technical analysis of another audio tape aired on the al-Jazeera satellite TV network showed "almost certainly" that it came from Bin Laden.

BBC: 'Bin Laden' tape attacks 'crusaders'

In the tape, aired Sunday in part on Arabic-language TV network Al-Jazeera, the speaker repeatedly blasts a "crusader-Zionist war" against Islam, citing other activities in Chechnya and Somalia.

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The Qatari government set up the Doha Centre for Media Freedom in 2008 to promote press freedom and quality journalism, and is home to the pan-Arab satellite TV network al-Jazeera.

BBC: Qatar urged to free poet Mohammed Ibn al-Dheeb al-Ajami

Bush's visit comes amid a report from Arab TV network Al-Jazeera that Iraqi terrorists kidnapped three Turkish citizens and threatened to behead them in 72 hours if Turkey does not pull its companies out of Iraq.

CNN: Bush, NATO focus on Iraq

Al Jazeera has acquired Current TV, the cable television network founded by former US Vice President Al Gore.

BBC: Al Jazeera targets US expansion after buying Current TV