Sometimes it takes just a single grain of sand to disrupt a fine-tuned machine.  In New Mexico, a dispute over $39 million created a huge bellyache for the state’s $1.4 Billion deal with Facebook.  The state’s Public Regulation Commission rejected a utility company plan to charge consumers for a power grid extension that could benefit Facebook.  PNM insists retail customers will get their investment back and more as Pacebook pays for power over the years.