"“Can you determine and report to this committee whether mosques have been entered by FBI agents or informants without disclosing their identities under the authority of the attorney general guidelines and, if so, how many?” Feingold asked. “I will say that we do not focus on institutions, we focus on individuals. And I will say generally if there is evidence or information as to individual or individuals undertaking illegal activities in religious institutions, with appropriate high-level approval, we would undertake investigative activities, regardless of the religion,” Mueller responded in part." (thanks Amer)