by ufoholic

Portals are found in many books, movies and video games. Some of them are links between distant places, others travel back or forward in time, and the most powerful ones lead into different dimensions.
Most people presume that these gateways exist only in the realm of science fiction, but there are some who strongly support the idea that portals have been opened in ancient times and quite possibly in the present days as well.
According to two National Security US Informants, the Department of Defense developed time travel technology over 45 years ago.

Source: The CIA Has a Secret Time Travel Program | Humans Are Free