Squirrels: those cute, little furry critters! Some say they're adorable, but they can wreak havoc on power grids by damaging and chewing through electrical wires. These creatures, along with many other potential causes of power outages, were the points of focus in a three-year study done at the Lawrence Livermore National Laboratory. Researchers designed an algorithm to predict causes of major long-term blackouts and possible catastrophic shutdowns of utility companies. The name of this study? "Squirrel"!