Obama visit: Mixed messages

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Media captionMr Obama got a standing ovation as he became the first US president to address both Houses of Parliament.

Watch my latest report on President Obama's visit to the UK, when he became the first US president to address members of both Houses of Parliament and reinforced "one of the oldest and strongest alliances the world has ever known".

However, at an earlier joint news conference there seemed to be a difference of tone on the crucial issue of Libya.