HARTFORD, Conn. — Mold is threatening thousands of artifacts in the Mark Twain House & Museum in Connecticut. The Hartford Courant reports (http://cour.at/2l7JoJP) the “Adventures of Huckleberry Finn” author’s historic home in Hartford is undergoing an extensive remediation effort to clean the damage. The mold was first discovered in 2015 and impacts at least 5,000