Latest update: 05/01/2012
Iowa caucus: Romney ekes out 8-vote win over Santorum
With just eight votes between them, Mitt Romney pips Rick Santorum to the post as the winner of the US Iowa caucus. Meanwhile, the Democrats focus on getting out the youth vote, as our correspondents in Miami have been finding out. Finally, we look at why tourists have disappeared from Acapulco, one of Mexico's premier resorts.