http://cnn.netscape.cnn.com/news/story.jsp?idq=/ff/story/0001/20060404/1335813539.htm&floc=NW_1-T PARIS (AP) - Demonstrators opposed to a new jobs law clashed with police in downtown Paris on Tuesday, throwing stones and debris as they dodged tear gas canisters. Several people were seen being carried away by authorities. A nationwide strike shut down the Eiffel Tower and snarled air and rail travel for the second time in a week Tuesday while students barricaded themselves in schools to protest a jobs measure that has riven the country and put the government in crisis mode. Protesters have mounted ever-larger demonstrations for two months against the law, which would make it easier to fire young workers. But President Jacques Chirac signed it anyway Sunday, saying it will help France keep pace with the global economy.