@ anonymous coward @ Mark Wills
since the cut is half way through a link, you can't expect to see any 'colour coding' as you sugges. And to claim 1. you would route it overland and 2. 'you would have it done in half a day given BTs resources'? are you serious?
if a major cut occurred in our infrastructure, it would certainly be a disaster scenario only to be remedied by many hours of retubing, reblowing etc etc. of course we'd switch-reroute the less important stuff (say 50000 residential), but no monkeying around with critical infrastructure...
there are events which are financially viable to mitigate, and there are other rare-events which one should never ever pay to mitigate: ask 'what are the chances of someone cutting here... and would we have to pay the bill?' = <1e-9 = no = lose/lose for spending any money there.
Mr. Murphy's insurer will be receiving a very large bill, tant pis.