Dec 7 (Reuters) - Norfolk Southern Corp (N:NSC) NSC.N :
* Releases white paper from former surface transportation board commissioners
* Board remains confident that execution of its strategic plan is superior to
Canadian pacific's inadequate and high-risk proposal
* Former stb commissioners concluded that stb would be highly unlikely to
approve voting trust structure or the merger transaction
* Source text for Eikon ID:nPnbKcV54
* Further company coverage NSC.N