In Britain, a new opinion poll shows that Labour has increased its percentage lead over the Tories. The survey, in today's Sunday Times, gives Labour a 19-point lead, two points up on a week ago. This comes despite the party's manifesto launch being overshadowed by John Prescott punching a protester and Tony Blair being confronted over the National Health Service. Labour support has remained unchanged at 49% compared with a week ago, while the Conservatives' rating dropped two points to 30% and the Liberal Democrats were up one point on 14%, according to the poll.