It must be tempting. Having been subjected for all those years to Liberal and National taunts about running up the national "credit card" limit, surely Labor will be tempted to say no to Treasurer Joe Hockey's attempt to massively increase the federal government's borrowing limit. Making the Coalition return to Parliament a second time before the next election would reinforce the hypocrisy that Hockey showed in opposition with all his talk about the need to bring the budget back to balance quickly.

For what it's worth. That public attitudes can change over time could not be better illustrated than the finding by Gallup released last night that a clear majority of Americans now favour the legalisation of marijuana.