Philip Pemberton wrote:
  I'm beginning to wonder if there's
something in the water or food
 supply that's impairing the mental functioning of a good chunk of the
 population of the planet. Or maybe it's global warming - that seems to
 be the in-vogue 'problem' at the moment. 
   Google "aspartame Donald Rumsfeld".  Be sure your tinfoil hat is
 properly tuned before reading.
   Seriously, though, the stuff is amazingly toxic, and proven psychoactive. 
I usually have a seriously bad reaction to it.  I have to be really careful.
Peace...  Sridhar