Why do we celebrate St. Patrick's Day? Here's what the holiday is all about
CBSN
While St. Patrick's Day celebrations often produce images of T-shirts donning "Kiss me, I'm Irish," leprechaun hats and pubs full of people, the holiday holds a deeper meaning.
Here's a look at who Ireland's patron saint was and why he is celebrated each year.

Air travelers faced hundreds of flight cancellations and thousands of delays on Tuesday in the wake of powerful storms that struck the Midwest and Eastern Seaboard. Many airports also continue to struggle with disruption from reduced staffing at often-jammed security checkpoints amid a partial government shutdown that has lasted more than a month. Mark Strassmann contributed to this report. In:












