There's been much talk in the past few weeks about failures to connect the dots to find a pattern that might have alerted us to the terrorist plot of Sept. 11. Recently I visited a dot in a more fearsome pattern configuring the virtual certainty of mass terror involving nuclear, chemical or biological weapons if the international coalition does not extend its efforts from hunting al Qaeda-like cells to locking up the ingredients of mass destruction. The dot I visited was at Mayak, east of the Ural Mountains in Asian Russia. There, a huge concrete sarcophagus rises from the landscape. Its purpose is to entomb some 20,000 nuclear bombs' worth of plutonium and highly enriched uranium. Ashton Carter on protecting former Soviet nukes. Throw the Net Worldwide | 
