British police stepped up their anti-terrorist operations in London. Today officers shot one man dead, arrested another and conducted three raids around the capital. Reports from Birmingham say a suspect with a suitcase full of explosives has been arrested. When looking for the roots of radicalism, experts often cite economic distress as a factor. After the deadly attacks in London two weeks ago, police were led to the city of Leeds. Marketplace's Steven Beard went there looking for a connection.