Juneau Empire, by Randi Spray.  Anchorage author Tom Brennan will be in Juneau Saturday to sign copies of his new book, "Snowflake Rebellion." The book, released in April, follows what would happen if Alaska broke with the union. The hero, Colin Callihan, is a PR officer at an oil company and the villians are members of the enviromental lobby and federal government. Brennan revealed the source of inspiration for the novel at a May 15 meeting of the Alaska Support Industry Alliance, recorded by friend Dave Harbour of Northern Gas Pipelines, [...]