A hamburger chain from South Korea has been added to the food options at Baltimore-Washington International Thurgood Marshall Airport. Kraze (pronounced “crazy”) Burger opened earlier this month on Concourse C at BWI. This is Kraze’s first airport location in the United States. Its first American restaurant was in Bethesda, and it has other locations in Maryland, Washington and Northern Virginia. Kraze says it serves “grass-fed, hormone-free beef sourced from local farms,” according to a news release.