White House is Leaking UK Intel 'Like a Sieve'

The Islamic State claimed responsibility on its social media for an attack in Manchester that killed 22 people. Rukmini Callimachi, a foreign correspondent for The New York Times covering Islamic extremism, including Al Qaeda and the Islamic State, analyzes ISIS’s online messages and explains what they mean. Plus: Nuala McGovern, from BBC's Outside Sources, has been reporting in Manchester since the attack — she shares the Mancunian perspective.