How much vaccine coercion will Boris use?

It's the day after 'freedom' day and it's not entirely clear just how free we are, with the prime minister last night say that from September nightclub goers will have to prove their vaccination status or provide a negative test. But with just the threat of vaccine passports leading to record appointments booked in both Israel and France could this method get us to herd immunity? Katy Balls talks to James Forsyth and Isabel Hardman.