Credit: Chicago holds the No. 1 spot on pest control business Orkin's Top 50 Rattiest Cities List. Rodents invade an estimated 21 million American homes each year. Orkin experts say even if your city is not ranked high on the list, you should still be vigilant to help prevent rodents. (Courtesy Orkin)

DC is one of the most rat-infested cities nationwide

Missing Gaithersburg man found in Southern Md.

Howard Co. student struck by bus he was running to catch

Loudoun Co. farm to grow lettuce using fish waste

Missing 11-year-old DC girl found safe

Md. native injured in Vegas massacre is back in home state