Copyright © Las Vegas Review-Journal Not on my watch Candidate says Yucca a non-starter if he's elected By JOHN KERRY SPECIAL TO THE REVIEW-JOURNAL One of the biggest environmental and security challenges facing Nevadans is the threat that Yucca Mountain will be turned into the nation's nuclear waste dump. I voted against the plan to dispose of waste at Yucca Mountain -- and as president I will fight against it. Four years ago in a letter to Nevada Gov. Kenny Guinn, then-candidate George W. Bush pledged he would approve a nuclear waste repository at Yucca Mountain only if it was...