Thousands of students marched through Paris and blockaded universities across France yesterday as their revolt against the government over a controversial new youth employment law intensified.Dominique de Villepin, the prime minister, has staked his reputation, and possibly his job, on a measure that aims to cut rampant youth unemployment with two-year contracts that enable employers to sidestep rigid French labour laws and fire them without reason. It has provoked violent protests and yesterday riot police were on stand-by in the capital as marchers blocked boulevards and junctions. "This is not 1968 all over again," said a protesting student of Sorbonne...