Spy secrets that can save your life

Sinopsis(en Inglés)

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"When Jason Hanson joined the CIA in 2003, he never imagined that the same tactics he used as a CIA officer for counter intelligence, surveillance, and protecting agency personnel would prove to be essential in every day civilian life. In addition to escaping handcuffs, picking locks, and spotting when someone is telling a lie, he can improvise a self-defense weapon, pack a perfect emergency kit, and disappear off the grid if necessary. He has also honed his 'positive awareness' - a heightened sense of his surroundings that allows him to spot suspicious and potentially dangerous behavior - on the street, in a taxi, at the airport, when dining out, or in any other situation."--