The United States is currently one out of 51 countries to supply intelligence to the Brazilian effort to counter terrorism in Rio de Janeiro during the 2016 Summer Olympic Games. Although there are 51 other countries helping Brazil intelligence, the US is second under Brazil itself. This highly classified effort had begun days before the games had even started. Along with over 1,000 spies, the US also sent over more than a dozen highly trained Navy and Marine Corps commandos from the U.S. Special Operations Command to work together with the Brazilian Federal Police and Navy, according to NBC News.

Approximately 800 intelligence personnel, mostly U.S. based analysts, have been assigned, while another 350 are on the ground in support of American, Brazilian and International Olympic Committee efforts. As expected, there are also larger U.S. military units on call in case a rescue or counterterrorism effort is needed.

This operation includes 17 U.S. intelligence agencies including the armed forces, spy satellites, electronic eavesdropping, and cyber and social media monitoring. Their job includes protecting more than 10,000 athletes, 35,000 security and police personnel and many others. They are also working to monitor terrorist's social media accounts, and are offering help to secure computer networks.

“US intelligence agencies are working closely with Brazilian intelligence officials to support their efforts to identify and disrupt potential threats to the Olympic Games in Rio,” said Richard Kolko, a spokesman for National Intelligence Director James Clapper, NBC reported.

Although there have not been any serious terroristic threats on the Olympic Games, officials are well prepared for anything. The only issue Brazil has had recently, were the arrests of 12 people suspected of planning an attack on the games. The group was inspired by ISIS and mostly planned online, CNN reported. Justice Minister Alexandre de Moraes said no specific targets were mentioned, but the suspects' phones and computers were still being investigated to learn more about other possible plans. Overall however, these 12 people were considered only amateurs, and are not a serious threat.