Waller states that these inmates mostly come into prison as non-Muslims. He also says that 80% of the prisoners who "find faith" while in prison convert to Islam.[116] These converted inmates are mostly African American, with a small but growing Hispanic minority. Waller also asserts that many converts are radicalized by outside Islamist groups linked to terrorism, but other experts suggest that when radicalization does occur it has little to no connection with these outside interests.[117][118][119]