America's secret nuclear deal with China David Ignatius, Washington Post columnist: A US nuclear attack on Iran? The Chinese want no one to cross that red line There were concerns about Russia's use of tactical nuclear weapons; America secretly tried with China not to cross that red line.

America's secret nuclear deal with China David Ignatius, Washington Post columnist: A US nuclear attack on Iran? The Chinese want no one to cross that red line There were concerns about Russia's use of tactical nuclear weapons; America secretly tried with China not to cross that red line.