coming up later on the show steve leaseman speaks to san francisco fed president john williams.t does it here on "worldwide exchange." thank you so much for watching. "squawk box" is next. bye-bye. xxx with xfinity from comcast you can manage your account anytime, anywhere on any device. just sign into my account to pay bills manage service appointments and find answers to your questions. you can even check your connection status on your phone. now it's easier than ever to manage your account. get started at xfinity.com/myaccount . >>> good morning. we have a global market alert. china cutting interest rates for the third time in six months in an attempt to jump start its sluggish economy. a sluggish china economy. of course sluggish for them is different than what's sluggish for us. the future of the euro zone in question as greece quickly runs out of money and eu members decide whether to hand the country another life line. and uber valuation, the ride sharing start-up plans to raise another chunk of change and that could value the company at $50 billion or more. "squawk box"