If it is a
fair reduction between the US and Russia then I see no problem.Thing is the Russians have been investing much more in cruise missiles with nuclear warheads(or the potential to carry them) that allows them an advantage gap in fact they already have one.So a deal would have to cover both ICBM and various nuclear capable cruise missiles.Other wise one side has would have an unfair balance.
http://www.nti.org/gsn/article/russi...uise-missiles/