Were microwaves used in diplomat attacks in Cuba, China?

Investigators looking into the alleged health attacks on U.S. diplomats both here in Cuba and in China have a new theory and it is looking at so-called microwave weapons. These are devices that emit an electromagnetic beam of energy, very precise beam of energy that can cause numerous symptoms including probably concussions, it could cause people hear sounds that don't actually exist. Now, initially when U.S. diplomats complained that they were being targeted by some sort of mystery device in Cuba investigators felt that it could involve a sonic weapon. Now, they appear to have discounted sonic weapons and are looking at microwaves, saying that there are weapons. There are a number of countries that have had microwave weapon programs going back decades, and that they could have been used to essentially bombard these diplomats in Cuba and in China that has caused them to have concussion-like symptoms. When doctors look at their actual brain scans, they see evidence of a concussion, evidence of brain trauma, but there was never a physical event that would correspond to that kind of brain trauma. But this is a theory the FBI has come here on numerous occasions to Cuba to investigate and has not found any hard proof that there were attacks against diplomats. The Cuban government denies any involvement at all, says that they have put hundreds of government officials on the case looking into any kind of attack that could have taken place, any kind of health evidence, and said that they found absolutely nothing. But the U.S. has pushed back saying that the Cuban government, even if they were not behind the attack, that they must know more. So, for the moment at least, this remains a theory in search of evidence.  Credit: CNN, Getty