RMT are not in fact affiliated to Labour and some of its activists support the pro-independence Scottish Socialist Party. The SNP manifesto talks vaguely of possible different ownership structures, which could mean nationalisation, although it could mean nothing - they like to cover all the bases.
Spot on. My view is, from discussions with senior officials, that they would like a fence-sitting solution that would offend as few people as possible. In fact the TS mantra is "no losers".