Immigration: Terrorist Grounds for Exclusion and Removal of Aliens [Updated October 12, 2007] [open pdf - 148KB]
"The Immigration and Nationality Act (INA) spells out a strict set of admissions criteria and exclusion rules for all foreign nationals who come permanently to the United States as immigrants (i.e., legal permanent residents) or temporarily as nonimmigrants. Notably, any alien who engages in terrorist activity, or is a representative or member of a designated foreign terrorist organization, is generally inadmissible. After the September 11, 2001, terrorist attacks, the INA was broadened to deny entry to representatives of groups that endorse terrorism, prominent individuals who endorse terrorism, and (in certain circumstances) spouses and children of aliens who are removable on terrorism grounds. The INA also contains grounds for inadmissibility based on foreign policy concerns. This report opens with an overview of the grounds for inadmissibility and summarizes key legislation enacted in recent years. The section on current law explains the legal definitions of 'terrorist activity,' 'engage in terrorist activity,' and 'terrorist organization,' and describes the terrorism-related grounds for inadmissibility and removal."
CRS Report for Congress, RL32564