coughing
John Swaller was jailed in Missouri on a charge of making terroristic threats.
The president asked his acting chief of staff to leave the Oval Office after he dared to cough.
When a cough doesn't go away, it could be more serious.
WHAT'S HAPPENING
If you’re hacking away, there are things you can do besides cover your mouth.
"There should be, we hope, a cool factor here."