>Who is responsible, USA? Russia? Ukraine? Poland? Terrorists? No one? All of these are possibilities to some degree or another, except I think "no one". It d

>Who is responsible, USA? Russia? Ukraine? Poland? Terrorists? No one? All of these are possibilities to some degree or another, except I think "no one". It doesn't seem plausible that multiple simultaneous explosions would sever this extremely durable pipeline.