British Prime Minister David Cameron (L) and his wife Samantha are pictured after making his keynote speech on the final day of the annual Conservative Party Conference in Birmingham, central England, on October 1, 2014. Talk of treason cast a shadow over Britain's Conservative party conference this week, where gossip raged over who might be next to defect to the anti-EU UK Independence Party (UKIP). AFP PHOTO / OLI SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images)