By Michael Rios, CNN Mexico City (CNN) — When millions of foreigners visit Mexico for the World Cup this summer, they will encounter much more than colorful soccer murals, towering statues of players and lively fan festivals. In the country’s biggest tourist hotspots, visitors will see tighter security measures and heavier police presence meant to safeguard both fans and Mexico’s public image. Nearly 100,000 security personnel will be deployed b…