Aspiring US presidential candidates go head to head in TV debate

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Ten Democrats have clashed on immigration and healthcare in the first TV debate of the race to oust President Donald Trump from the White House. We'll be looking at the debate in the US on whether to approve emergency spending for the migrant crisis on the border with Mexico and El Salvador. There is "every suggestion" HPV vaccination will lead to a fall in cervical cancers- that's according to scientists who carried out a major review of evidence.