In the past two years there has been a resurgence in the number of bed bug infestations in North America.
Bed bug city has maps showing the extent of the plague, with the situation being worst with some of the heaviest infestations spreading in the Western Coastal regions of the United States which has a climate the most favorable to year round bed bug travelling (they are killed in winter should they be found outside the warm comfort of a nest in someone's bedroom, which inhibits their ability to travel in some regions of the country).
Full story:SleepTight by Brent Herbert