CLOAK & DAGGER
It turns out the City of Brotherly Love has a rich past of espionage perfect for the history buff.
H. Keith Melton is an internationally recognized intelligence historian and authority on espionage technology. He has co-authored numerous books, including Spy Sites of Philadelphia, Spy Sites of Washington, DC, and Spy Sites of New York City. He is also co-executive producer of the Netflix series Spycraft.
It turns out the City of Brotherly Love has a rich past of espionage perfect for the history buff.