Share A Japanese Yakuza leader pleaded guilty in federal court on Wednesday for attempting to traffic military-grade weapons and roughly 1,100 lbs of narcotics. Those charges alone will get someone locked up for quite a long time—throw in another conviction for trying to offload thousands of pounds of uranium and weapons-grade plutonium, and it’s unlikely Takeshi Ebisawa will ever leave prison. It’s hard to pick the most damning evidence on display in the Department of Justice’s court filings. There’s an undercover agent’s photograph of Ebisawa brandishing a stolen US Army…