Why would anyone be sending out in the DC area a coded message entitled H O L L in T o w e r : followed by 4 rows of all capital letters which do not make any words have no space in between and resemble no language? A signal so strong if you are anywhere near any of the supposedly secret security weapons like those on the roof top of our apt building that residents in building get it even in what would be medical devices? Is this the holl they are referring to? What tower do they refer to? Our apt building is called Victory Tower and has one of those sonic crowd panic control security devices that are on buildings in and around DC. It goes off in major crisis deafens and knocks everybody out. It was tested here in Takoma Park, MD once I was unconscious for a long time that day. Ain't been the same since it and the other devices on roof top are powerful but how do secret messages get into my apt on the 8th floor? Your secret data may not be secret. People from 20 different countries live here. Could we not all be getting these messages? It use to happen in 2013 a lot then work on roof seemed to change it. Now it is back. Large muslim population in area so be careful not so friendly nations could get data.