This week in print

EVER since Stephen Harper became Canada's prime minister in 2006, his Conservative government has sought to move the country away from its social-democratic traditions. His latest push has been in immigration policy, long a key part of the country's liberal identity, and the latest print edition of The Economist explores how successful he is likely to be. The issue also tries to solve two seeming paradoxes: why Mauricio Funes, El Salvador's president, is so popular in spite of a stagnant economy and rampant gang violence; and why the killing or capture of leaders of drug gangs is not reducing violence in Mexico.