http://www.reuters.com/article/us-usa-cuba-diplomacy-idUSKCN1B42MJ
>The US State Department has said mysterious "incidents" are causing physical symptoms in at least 16 Americans linked to the U.S. embassy in Cuba, in what is being described as an "acoustic attack."
How are they doing this and how can America retaliate? Can this be classified as a WMD?
no. since there is no mass and there is no destruction