I was told that it was impossible to do because even though we had the rolling stock, we did not have the ability to deal with a union that had the opportunity to charge double time, triple time and all kinds of things on a train that was going across the country for two or three days.
It was a very difficult task
They said it's impossible to do, hence it's very difficult
( z1 task :mod ( z2 difficult :degree ( z3 very ) ) :domain ( z4 it ) )