Despite relentless coverage of the Mexican drug war by U.S. news media over the last several years, tourism to Mexico is rebounding strongly. Following three years of sharp decline that began in April 2009, when fears over H1N1 – the virus commonly known as “swine flu” -- effectively shut down most of the nation to foreign travel, visitors arriving in Mexico by air jumped to 22 million in 2011. That number is expected to increase again this year.