Tomorrow the Transport Secretary John MacGregor reintroduces the bill to privatize British Rail to the House of Commons, it had a rough journey through the House of Lords and until late last week it looked set for a stormy passage through the Commons too, but then Mr MacGregor introduced a series of amendments that everyone assumes will satisfy the rebellious Tory MP s, but as Michael Gold reports, there are still obstacles for Mr MacGregor to surmount.