The cost of war

Available for over a year

Today we'll be looking at the cost of war - and by cost we mean just that - how much the coalition is spending on its operation in Libya. How can countries with huge deficits afford a war when each missile sets them back up to half a million dollars? Justin Rowlatt interviews Frances Tusa, a journalist with the London based publication Defence Analysis. We'll also be asking whether mobile phones are replacing banks and how too much promotion can undermine your brand.