I have to agree there .. but I would also ask .. what kind of arrest is this .. house arrest???I guess we will see. For now, I do not believe the story. If it does turn out to be true, imho, a PA-style arrest is very unlikely: it serves no purpose for Iran. Makes more sense for them not to arrest at all.
Here's one possibility: They did get him, but they want $$$$something$$$$ in return for admitting that they have him. Perhaps they want to sell him to the highest bidder.