The routine was almost always the same, whether they were visiting a restaurant, deli, barbershop, or travel agency. The two rakers would enter and casually chat with the owner. The first order of business was to determine his ethnicity and that of the patrons. ... Next, they’d do what the NYPD called “gauging sentiment.” Were the patrons observant Muslims? Did they wear traditionally ethnic clothes, like shalwar kameez? Were the women wearing hijabs? If the Arabic news channel Al Jazeera was playing on the TV, the police would note it and observe how people were acting. Were they laughing, smiling, or cheering at reports of U.S. casualties in Iraq and Afghanistan?