So Project Fear stalks the land again. According to David Cameron, the prospect of SNP support for Ed Miliband in government is “frightening”, “calamitous” and liable to “alter the direction of our country”, causing English hospital and road building programmes to be abandoned. Why? Because the SNP “don’t care what happens in the rest of the country” and “don’t come to Westminster to contribute to a government. They come … to break up our country.” If Scottish Nationalists held the balance of power, the Tory leader said, “the rest of the United Kingdom – Wales, Northern Ireland and England – would not get a look-in”.