Originally Posted by bbfg
No. Hank thought he had already put it in on going in. Why the **** would he go and tell Walt he has nothing on Gus, while he can put pressure on Gus if Gus knows nothing?
It could be a test. It is plausible for Hank to have it purposely be Walt that place this surveillance on Gus because two things can happen:
1) Hank gets intel on Gus. Walt does not tip Gus off. No connection between Gus and Walt.
2) Gus finds the surveillance, which now implicates a possible relationship between Gus and Walt.