Everyone knows a politician loves a hard hat photo. \n\nAnd no more are hard hat photos - and pork-barrelling - seen than in the world of transport projects. The winners are often concentrated in a single electorate, whereas the losers are taxpayers dispersed across the state or country. \n\nListen to Marion Terrill discuss her latest report with Kat Clay, about why there should be stronger guardrails on federal transport spending. \n\nFor more information, visit: https://grattan.edu.au/