Before revision: The Computer Assisted Passenger Prescreening System (CAPPS II) was a program of the United States Department of Homeland Security (DHS) instituted to increase security at airports by assessing the risk level of passengers before they're allowed to board.
After revision: IIThe Computer Assisted Passenger Prescreening System (CAPPS II) was a program of the United States Department of Homeland Security (DHS) instituted to increase security at airports by assessing the risk level of passengers before they're allowed to board.