British Prime Minister David Cameron's plans to set out his vision for Britain's future in Europe in a major speech were thrown into disarray tonight when he was forced to cancel because of the Algerian hostage crisis, Downing Street said. In a dramatic development, Cameron postponed his visit to the Netherlands to make the long-awaited speech and hold talks with Dutch opposite number Mark Rutte. The speech, which has been several months in the planning, has brought debate at Westminster over the UK's future membership of the EU to fever pitch. Meanwhile, Cameron warned the country to prepare for "possible bad news" over the hostage crisis