true. but the Hulk was also a) very easy to spot & track and b) a lot more destructive. Banner wasn't going around stopping muggings or spying on girls at the gym. i'd just see Hulk as a higher priority for the military than Eric is for SHIELD. and it's not like he's a clever individual. if i were asked to track him down, i'd just put out the message that he'd be given amnesty and a chance to get training with his powers if he were to surrender. then i'd shoot him once he showed up. or heck, just fill the aerobics classes with SHIELD snipers. or have a female agent hit on him. poor guy already spilled his name and origin to a complete stranger (before getting her name or asking what she does for a living).