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The operation was carried out under secretive conditions, with Chen's wife reportedly delivering a substantial cash payment of $10,000 during a dead drop at a recreational site in the San Francisco Bay Area. The money was concealed in a backpack, consistent with covert movement practices, and is believed to be connected to funds from the MSS. Such dead drops are common in clandestine espionage activities, allowing agents to exchange valuables discreetly without direct contact.