He didn't allow any of the other Akatsuki members to go to Konoha, and even threatened Danzo to make sure he knew that Itachi was never too far from him and his ANBU and Root members. Genjutsu is ...

Danzo is one of the most hateable characters ... darkness as he blamed his brother for something that wasn't entirely Itachi's fault. He hatches numerous plans to usurp the mantle of Hokage ...