Originally Posted by T Bogard
Did you read the part where it was stated they were merely testing juubito's abilities.
Hiruzen did in 10 seconds what none of us or the other kages for that matter could do in 2 chapters. And that is live up to his professor status and completely analyze obito's complex jutsu, while engaged in battle.
The shurikens where that best choice, if you think about it becuase they have no nature, so he could clearly see what property obito's attacks had without his attack nature conflicting with obito's. The man is brilliant and credit should be givin.