Terrorism, Brexit Dominate British Election Campaign

Britain goes to the polls Thursday in a snap election called in April by Prime Minister Theresa May. May says she wants a strong mandate to take to Brussels when negotiations begin on Britain's exit from the European Union. But her hopes of winning a big majority have faded, as the main opposition Labour party appears to be closing the gap. As Henry Ridgwell reports, the campaign has been overshadowed by a series of terror attacks.