JFK International saw the introduction of automated passport machines yesterday to speed up the arrival of U.S. passengers from international flights. It's the latest airport-and one of the largest-to get the system. Similar self-service machines already in use at Chicago's O'Hare International Airport Terminal 5, and at two airports in Canada (Vancouver and Montreal) are already helping to significantly cut down wait times at customs that, at times, have forced arriving international passengers to stand in line for up to five hours or to be held back on a plane. 40 automated passport kiosks have been purchased by Delta for use in Terminal 4, where it is the largest tenant among more than 30 airlines. At JFK, only U.S. citizens will initially be able to use the machines, but soon Canadian citizens should be able to use the machines as well. The machines are being tested and if all goes well, they will be in operation by tomorrow.