On June 4, Navajo Nation Vice President Myron Lizer joined members of the U.S. House Natural Resources Committee at the U.S. Capitol for a press conference on the need to protect the Grand Canyon from new uranium mining claims.On June 4, Navajo Nation Vice President Myron Lizer joined members of the U.S. House Natural Resources Committee at the U.S. Capitol for a press conference on the need to protect the Grand Canyon from new uranium mining claims.