The Autumn Statement on 25 November had long been circled in Downing Street diaries as the season’s defining political moment. Its importance only grew after the Lords rejected the government’s tax-credit changes and George Osborne announced that he would present his revised proposals in this statement. But now it is not even seen as the defining political moment of this week, pushed down the news agenda by the terrorist threat in Europe and David Cameron’s decision to make the case to the Commons for Britain extending its anti-Islamic State bombing into Syria.