Story Behind the Story

There is always a story behind the story!  Whether it is the National Geographic magazine or the Bible, you have to go beyond the headline.  I'm thinking of a statement written long ago.   It's found in the Old Testament book of Chronicles where we read:  "After all that Hezekiah had so faithfully done, Sennacherib king of Assyria came and invaded Judah..." (2 Chronicles 32:1).  What's the story behind the headline?