As to who the mole inside CBI is . . do you remember when Cho hurt his back and had a problem with pain killers ?( just like Reede) and do you remember when Tyger Tyger first came up Cho recited the Tyger Tyger poem     if it was Rigsby or Van Pelt one would know if the other had a tattoo   so my guess would be Cho ( no one would see that comming and it would be a shocking reveal )  This season fuckin rocks