The biggest sporting event in U.S. history starts Thursday. Here's how U.S. authorities plan to keep it safe from drones, cyberattacks and more.

Security expert Peter Evans said World Cup risks differ from Super Bowl due to international fans, political tensions, and potential presidential attendance at games.

While FIFA World Cup fans were having fun, U.S. Customs and Border Protection used technology to protect the country’s border at the stadium.

FEMA has given cities and states $250 million to protect the World Cup from airborne threats. That equipment will remain in place after the tournament.

On June, Monterrey has become the first World Cup host city to deploy Chinese-developed robot dogs as part of its stadium security operation, with the K9-X units joining human officers to scan crowds,

With the World Cup about to begin, heavily armed police and National Guard officers are patrolling the streets of Guadalajara as authorities try to reassure visitors and residents that security won’t be an issue in a city that was rocked by cartel violence earlier this year.

On June 16, which was the day of Kansas City’s World Cup opener between Argentina and Algeria, 22-year-old Sanchez-Munoz allegedly opened fire on five vehicles as drivers were on major roads near Interstate 70. Five people were shot, including four adults and one teenager. A 43-year-old man, Jeremy Keenan, died from his injuries.

This is the largest and most complex World Cup ever, with three host countries and 48 teams. It will place unprecedented challenges on medical and security staff