 It's Morning Edition from NPR News. I'm Steve Inskeep. And I'm Layla Faldin. Good morning. This is the day the U.S. celebrates its declaration of independence from the British government. In a moment, we'll hear from NPR listeners about what that document means to them. But first, we go to Britain, where this Fourth of July sees voters casting ballots for a new parliament and prime minister. Polls show that after 14 years of Conservative Party rule, the centre-left Labour Party is forecast to win...