Originally Posted by Kid A
I had seen it brought up before this season started just how bad the evidence would look for Hank if he tried to convict Walt, and the confession video really hit the major points I'd almost forgot:
-His rehab paid for in drug money
-Hector Salamanca specifically visited Hank right before returning to blow himself up (as part of the ruse to get Fring to visit the nursing home)
-He had been friendly with Fring beforehand via charity work.
I have no idea if it was planned all along, and if so how much planning actually went into it, but in any event it's a fantastic bit of writing.