Margaret Thatcher was given a final farewell Wednesday with full military honours that saw her coffin applauded through the streets of London, as the queen led mourners in paying their respects to Britain’s divisive and influential former prime minister. Tens of thousands of well-wishers turned out to watch Thatcher’s coffin as it travelled to St Paul’s Cathedral, many breaking into spontaneous applause and throwing flowers. Some 700 soldiers, sailors and airmen in full ceremonial uniform lined the route from the Houses of Parliament where Thatcher’s body had lain overnight, as guns were fired every minute from the Tower of London. In a sign of the bitterness her legacy still provokes, a minority among the crowd turned their backs as the funeral cortege went by, booing and chanting “Maggie, Maggie Maggie! Dead, dead, dead!” Some 4,000 police officers were deployed, amid heightened security following the bombings at the Boston Marathon. At the cathedral, Queen Elizabeth...