The US President is the first Western leader to stand up and announce that the whole sick business of terrorism has to stop. He means it. ___ When three knife-wielding Muslims charged into the Black and Blue Steakhouse near London Bridge on the night of June 3, they had the bad luck to encounter Mr. Roy Larner, who shouted, “F**k you, I’m Millwall,” referring to the South London football club supported by England’s most notorious hooligans. Mr. Larner fought them off with his fists and doubtless saved many lives. Millwall’s chant is, “No-one likes us. We don’t care.” President Trump...