He was an assistant professor of political science at [[DePaul University]] until they denied him tenure in 2007, due to "unprofessional personal attacks [which] divert the conversation away from consideration of ideas, and polarize and simplify conversations that deserve layered and subtle consideration." <ref>[http://www.iht.com/articles/ap/2007/06/10/america/NA-GEN-US-Professor-Tenure.php U.S. university denies tenure to professor who questioned Holocaust compensation]</ref> | He was an assistant professor of political science at [[DePaul University]] until they denied him tenure in 2007, due to "unprofessional personal attacks [which] divert the conversation away from consideration of ideas, and polarize and simplify conversations that deserve layered and subtle consideration." <ref>[http://www.iht.com/articles/ap/2007/06/10/america/NA-GEN-US-Professor-Tenure.php U.S. university denies tenure to professor who questioned Holocaust compensation]</ref> |