It is a campaign starting in Washington D.C., but scheduled to spread to other parts of the nation…putting the photos of missing children on bus stop billboards, with the hope of bringing them home. Dozens of digital billboards throughout the D.C. Metro area are displaying images and information on missing children from the area as well as those from Maryland and Northern Virginia. The campaign is being called the “Summer of Hope” and ran for about a month, ending just as school was beginning. Baltimore was also a part of the campaign, and it is expected to continue in Chicago, Minneapolis and Los Angeles in the coming weeks. The billboards are the result of a partnership between the National Center for Missing and Exploited Children and Clear Channel Outdoor Americas.