U.S. Customs and Border Protection is expanding the Global Entry program, which will open at four additional airports this month. The streamlined international arrivals process, which makes use of automated kiosks to scan passports and ask customs-related questions, is now in use at Minneapolis-St. Paul International Airport. Next week, on March 12, it will debut at Charlotte Douglas International Airport in Charlotte, N.C.; on March 19 it will go into effect at Denver International Airport, and on March 26 it will be implemented at Phoenix Sky Harbor International Airport. By the end of this month, expedited immigration clearance will be available at airports that serve 97 percent of international traveler arrivals in the United States. The program currently reduces wait times for participants by an average of 70 percent. See globalentry.gov for information about how to apply to the program, as well as maps for the kiosks already in use at 20 other U.S. airports.