This comes in the wake of Karoubi's offices being raided by the Revolutionary Guard, apparently on orders from Ahmadinejad. In these raids, documented evidence of detainee rapes were confiscated.
What is interesting here is the triangular dynamic between the Larijani's, Ahmadinejad, and Khamenei. Ahmadinejad has long been considered to be Khamenei's puppet in the executive. The Larijani brothers, on the other hand, are close to the Supreme Leader but are political rivals and said to despise Ahmadinejad. Sadegh Larijani's appointment as Iran's new judiciary head, then, was seen as Khamenei rebuking Ahmadinejad, perhaps in an attempt to reassert himself as the country's sole decision-maker. So what these developments show is that while the Larijani-clan may not care for the direction Ahmadinejad is taking the country, they are still willing to go along - which ultimately means that Khamenei is willing to go along. Time will tell how long he can afford to, and begs the question, has he now become Ahmadinejad's puppet? If this is to be called a coup, then the answer must eventually be yes.
