他表示，位于M15威斯敏斯特总部的联合反恐分析中心（JTAC）分析了一系列包括新资料积累在内的大量因素才得出此威胁评估报告。

He said that the Joint Terrorism Analysis Centre (JTAC), a unit at MI5's Westminster headquarters, had based its assessment on a broad range of factors including "an accumulation" of new material.

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