UK police make 'significant' arrest in London subway blast

LONDON (AP) — British police made a "significant" arrest in the urgent manhunt for suspects a day after the London subway blast that injured more than two dozen people, authorities said Saturday.Police said that an 18-year-old man was arrested by Kent police in the port of Dover on the English Channel. He is being questioned under the Terrorism Act. Dover is a major ferry port for travel between Britain and France."We have made a significant arrest in our investigation this morning," Deput