Roger Wicker actually said...

What should we worry about? Do you worry about the $17 trillion?

We have a national debt of $17 trillion. How much of that does China hold?

What alternatives do they have? And what could tip the balance away from them choosing to invest further in United States securities?

If the economy improves as you expect it to, the $221 billion we pay each year in interest on the national debt, that will double.