Charlottesville Daily Progress: As U.S. Rep. Tom Perriello was considering how to vote on an important piece of climate change legislation in June, the freshman congressman`s office received at least six letters from two Charlottesville-based minority organizations voicing opposition to the measure. The letters, as it turns out, were forgeries. “They stole our name. They stole our logo. They created a position title and made up the name of someone to fill it. They forged a letter and sent it to our …