There are 30 "trouble spots" on the Monitors' map. They correspond (roughly) with the following locations: Anchorage, Alaska; San Diego, California; Chicago, Illinois; Lima, Peru; Santiago, Chile; Cochrane, Ontario; New York City, New York; Philadelphia, Pennsylvania; Havana, Cuba; Salvador, Brazil; Marrakech, Morrocco; Abidjan, Cote d'Ivorie; Cape Town, South Africa; Mombasa, Kenya; Barcelona, Spain; Paris, France; Rome, Italy; Berlin, Germany; Oslo, Norway; Athens, Greece; Kyiv, Ukraine; Moscow, Russia; Jerusalem, Israel; Cairo, Egypt; Darwin, Australia; Manila, Philippines; Bangkok, Thailand; Tokyo, Japan; Seoul, South Korea; Vladivostok, Russia; Beijing, China; Lhasa, Tibet