The Gangs of Arlington — As of 2011 there were 10 active street gangs in Arlington. According to a speaker at a panel discussion held earlier this week, the gangs often try to recruit youths who have recently immigrated to the country. Arlington, however, has an extensive gang prevention program that limits the influence of gangs within the county. [Washington Examiner]

National Drug Take-Back Day — The Arlington County Police Department will be participating in National Drug Take-Back Day next weekend. From 10:00 a.m. to 2:00 p.m. on Saturday, April 28, police will be collecting “expired, unused, and unwanted prescription drugs” — no questions asked — in an effort to prevent possible abuse and theft. Collection stations will be set up at fire stations 1, 8 and 9. [Arlington County Police]

Earth Day Twitter Chat Today — The Arlington County Department of Environmental Services is hosting a live Twitter chat on the topic of “green gardening” from noon to 1:00 p.m. today. “Join us and get answers to all of your questions related to landscaping and lawn care, native plants, and water conservation,” the county said in an email. One participant who submits a question will be randomly selected to receive a free rain barrel. [Facebook, Twitter]