Rock's original legends are aging into their 70s and 80s, but you rarely hear about the severity of their health issues, since an ongoing touring career involves maintaining the appearance of physical vitality, if not eternal youth. Count Dick Dale as the exception: The "king of the surf guitar" may just do for real talk about senior maladies what he did for reverb and amps in the early 1960s, being perhaps the one seminal musician of his generation who's eager to rock you like a hurricane and talk about extreme renal failure. Dale's health concerns have become an unlikely viral...