The country’s top spy agency isn’t sure how many of its employees use the agency’s equipment to look at child pornography.

The revelation comes shortly after intelligence officials made offhand remarks about the amount of child porn they have found on agency systems in the past. “The amount of child porn I see is just unbelievable,” Daniel Payne, director of the Defense Security Service, told a conference in Virginia last week. “What people do [at work] is amazing,” added Kemp Ensor, the NSA’s director of security.

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