Frank Sinatra once sang about the seductive properties of bright and shiny ephemera. ‘Her heart will sing, singa-linga, wearing baubles, bangles and beads,’ crooned Ol’ Blue Eyes. There is a temptation for anyone cynical about politics – that’s nearly all of us by now – to view the Government’s announcement of planned new asylum-seeker accommodation as a similarly knowing exercise in buttering us up with something eye-catching but insubstantial.