A parent’s fight to make big concerts safe from attacks

As It Happens

Plus: “It was like having the Mona Lisa in your living room.” Except it was a portrait of Winston Churchill. And it was stolen.

Also: Astronaut Dave Williams on the Polaris Dawn space walk and why he thinks people will be living full time on the moon within 50 years; a Newfoundland mayor tells us why he padlocked the doors to the local church; and we revisit the Ig Nobels…which celebrate "achievements that first make people laugh, and then make them think."