Moiaussi wrote...
If TIM knew about the SB's bugs, why not cut them off? They compromise stealth by their very nature (which btw is a working theory of mine how the collector ship spotted the Normandy in the first place).
How familiar are you with the practical importance of 'I know you know I know...' chains?
Moreover, there is the the difference of knowing that you're penetrated, and knowing where and how you're penetrated. This is one of the classical conondrums of a security state: you know the government keeps informants in a population, but you don't necessarily know who those informants are. Simply going by people you trust isn't good enough, because loyalty can be swayed (like the Firewalker Cerberus doctor who aided the Collectors in exchange for his family's protection), and a good spy appears and maintains a reputation of trustworthiness in the first place.
If TIM knew about the SB's bugs (and we don't have an indication he did), that doesn't mean the SB's bugs are the Collectors intel assets. The more relevant point is that TIM's concerns about possible intel infiltration isn't invalid, whether he can prove it or not.
More to the point though, why wouldn't the crew be naturally cautious and already assuming the possibliity of a trap?
The difference between taking the possibility of a trap, and acting on the knowledge of a trap.
In a military analogy: a unit patrolling a road can keep an eye out for IED's, and may find them and disarm them. That's not suspicious in and of itself, and the opponent may choose to launch an attack anyway. But a unit that goes down a road and immediately goes up to every IED, that is another matter entirely, and a strong indicator that the enemy is expecting an attack, and so should not be attacked.
Naturally there are many degrees between these, but the degrees matter as well.
TIM was just relying on Shepard' holding the idiot ball?
Shepard isn't holding an idiot ball in that he's an idiot. Shepard, TIM, and the Collectors are holding a versimillitude ball.
Why would the collectors simply expect anyone to be that gullible as to take no precautions?
Besides the matter of a failing of the medium (sci fi writers are never going to be experts at warfare, science, or espionage), it doesn't require gullibility.
The only reason TIM knows about the Collector Trap being a trap is because he knew something the Collectors did not: the secret secondary-encryption (the code inside the code) of Turian distress signals. Anyone without that extra knowledge would have no reason not to trust the distress signal as legitimately Turian.