Seven House Democrats have written Attorney General Eric Holder invoking a list of grievances from radical Islamist groups and asking that Holder meet with representatives from those groups to hear their concerns, the Investigative Project on Terrorism has learned. The grievances include the use of convicted felons as informants in mosques, alleged religious profiling of Somali Muslims in Minnesota and elsewhere and allegations that the FBI is working with foreign governments to question American citizens who are terror suspects. In the letter, the representatives said: "These concerns raise legitimate questions about due process, justice, and equal treatment under the law....