David Brancaccio

We're watching financial markets on what could be an especially volatile news day for bonds, stocks and currencies.

I'm David Brancaccio in Los Angeles.

A U.S.

president talking about taking a piece of a NATO country by force, Greenland, is part of the uncertainty that knocked the Dow Jones Industrial Average down 870 points yesterday, one and three quarters of a percent.

The S&P fell 2.1 percent.

The Nasdaq yesterday lost 2.4 percent.

I spoke this morning to Russ Mould, investment director at the U.K.-based investment firm A.J.

Bell.

There is a sense of uncertainty that even our pros with all their –

Market screens and information that they digest can't fully parse.

Now, I assume you're going to be paying close attention to markets as the live feed comes in from Davos, where President Trump is due to speak.

It looks like it's going to be late now because he had to change airplanes.

But that could shove markets to and fro.

Always good to catch up with Russ Mould.

He's investment director at AJ Bell out of the UK.

Thank you so much.

Thank you.

Yesterday, U.S.

and global bond markets also took a dive, with some traders talking of a return to what some have dubbed the sell America trading strategy.

The U.S.