Executive Order on Gun Control

The Mr. Cool in the Oval Office rarely shows emotion.

But on one issue -- guns -- President Barack Obama lets the public mask slip, revealing the ire boiling within.

On Tuesday, President Obama will formally announce new executive actions aimed at addressing American gun violence. The measure that's sure to evoke the most debate — and which has already done so — is his plan to extend the use of background checks to cover more sales at gun shows.