Translate the following sentence into Turkish.
Synthesis of the F.B.I. 's counterespionage offensive in World War II... is the Christopher case which opened... as great cases often do, by accident- a little accident at Bowling Green in New York City.
Dünya Savaşì'nda yaptìgì karşì-casuslugun sentezi her büyük vaka gibi rastlantìsal olarak açìlan Christopher vakasìdìr.