Metro says it will begin randomly inspecting the carry-on bags of its riders.
Metro Transit Police Chief Michael Taborn says the inspections will only take a few minutes and should not cause delays for commuters. He says police will use K-9 dogs and devices that can pick up traces of explosive materials.
"It's going to be random, and its going to eliminate the profiling concerns of picking someone out based on their race or nationality," Taborn says.
Metro announced plans for a similar program two years ago. But after a strong reaction from riders and the American Civil Liberties Union, the random searches never materialized.
Taborn says the inspections could begin any day now.