Sometimes an Arizona summer can feel like a battle for survival.  With hundreds of heat deaths every year, it really is for our most vulnerable.  And yet, some people, whose sanity is questionable, do very odd things like hiking Camelback in the middle of a hot day... in jeans.  Others tempt fate to make a point.  In our other stories you need to know, your mettle will be tested in the Arizona heat.  See if you are up to the challenge in our Headline Volley.