Penetrated?

Terror War, Southern Front:

Colombian and American interrogators have been questioning captured FARC leader Simon Trinidad. The rest of the FARC leadership are running scared, or at least moving in different directions, because of fears that Colombian and American intelligence have penetrated FARC security and are stalking key FARC members. At least that’s the news that coming down from FARC controlled mountains. At the same time, many Colombian government officials fear that FARC may retaliate by trying to kidnap more senior Colombian government and business personalities.

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