Is Network Rail back on track or do problems lie further along the line?

George Osborne and rail chiefs now claim infrastructure projects will be completed, but without saying when or at what costIt seemed the page had been turned, the future of rail was now rosy. The chancellor announced on Wednesday that key projects were back on track: Network Rail was trumpeting that no infrastructure project would now be axed after all.Yet if the review set to draw a line under the crisis that erupted in June, when major upgrades were canned, was such good news, one commentator