Yen, dollar, or duvet?

After a week when China added to market nerves already frayed by Greece and the price of oil took a dive, Roger Blitz asks Hamish Pepper, currency strategist at Barclays how investors should react. Should they flock to the yen, the haven of the moment, learn to love the dollar again, or take a break and wait until the fuss dies down? For information regarding your data privacy, visit