But the area is guarded by the Secret Service and Chicago police.
VOA: special.2009.01.12
He trains police and secret service members to try to figure out cues to honesty and dishonesty.
他培训警察及情报局人员,试图找到诚实和撒谎的线索。
He trains police and secret service members to try to figure out cues to honesty and dishonesty.
他培训警察及情报局人员,试图找到诚实和撒谎的线索。
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