Identify the origin of the quote "Fools rush in where angels fear to tread" and criticize the decision of two MP's to visit places where they may not be welcome.
What's the song?  "Fools rush in where angels fear to tread"  
Two seasoned  MP's  go where they are not wanted and can do no good.  Fools indeed.  Where will they visit next on a fact finding commission - North Korea?