By Adam Hawksbee Hammersmith Bridge has been closed for five years as politicians have repeatedly passed the buck. It’s just one example of how the British state repeatedly fails to take big decisions and see them through, says Adam Hawksbee How many politicians does it take to rebuild a bridge? In Pennsylvania, the answer is one. Last summer an overturned petrol tanker took down an overpass on the I-95 just outside Philadelphia, a major economic route carrying over $2bn of freight a week. Governor Josh Shapiro immediately signed an executive order to bypass normal processes, granting emergenc…