To the authentically British backdrop of drizzle, a distant heckler and the piccolo patter of a Downing Street tree sparrow, Rishi Sunak confronted the 'poison' of Islamist and far-Right extremism. It needed saying and it needed saying well. Our Prime Minister did that. Arc-lit by TV cameras as Friday afternoon slipped into evening, a deadly serious Sunak said: 'This situation has gone on long enough. Our great achievement in building the world's most successful multi-ethnic, multi-faith democracy is being deliberately undermined. There are forces here at home trying to tear us apart. We must not allow that to happen.' 'Forces...