Brussels on Lockdown

All of Europe is on high alert in the aftermath of this morning‘s deadly explosions in Brussels — two at the airport and one at a train station downtown. Belgium’s prime minister says it was feared this might happen as retaliation for last week’s high-profile arrest of a prime suspect in November’s attacks in Paris. ISIS is claiming responsibility, and there’s more doubt than ever about the effectiveness of counter-terrorism. We hear details and update the mood in Brussels, headquarters of the European Union.