If leaks out,that russia helped terrorist to make 11 september attacks?how bad it would be and what would happen?

Obama would have even more respect for Putin.

Obama would promptly apologize to Putin, man.

These are all hypotheticals. And they surely don't count. Havent we plenty to consider already?

This is a false statement only because we already know who caused 9/11 it was some terrorists America funded to overthrow the Russians then after directed hatred toward us. We caused 9/11.

We have enough problems, we don't need to make up more. At the time Russia was having their own problems in their ever restless provincial areas. They never were as strong as we were told they were. But if we're going to make things up then this late in the game nothing would happen. We have other enemies now, anxious to use material from other countries. In a way Russia is kind of old fashioned, they like their wars man to man, in uniform with guns.

Didn't so couldn't but in your scenario if it did, NOTHING would happen.