"By Daniel Dombey in Washington Published: December 7 2008 15:54 Last updated: December 7 2008 18:47 Barack Obama on Sunday spelled out his plans for the biggest infrastructure investment in the US for half a century. The president-elect argued that with the economy reeling, his incoming administration could not afford to worry about a spiralling budget deficit. Mr Obama’s proposals for government works on roads, bridges, internet broadband and school buildings, together with energy efficiency measures and health spending, are far more detailed than the normal announcements during a time of transition."