Yes! its now possible. The FBI has arrested several people who click on links supposedly linked to child pornography. We know this a noble quest, but there’s a fairly large error in this logic. The Feds might just say that the referrer does not match.
Now the question is how can a user with no referring URL be credited with an investigation. This is indeed a noble pursuit but this seems dangerous and just another one of those witch-hunts the government perpetrates.
Is clicking a link worthy of jail time? This kind of paranoia only brings out more loopholes and now we have given people a chance to disavow their actions. They could just argue that they were just trying out or browsing through the site.
Ergo, clicking a link as evidence of guilt is almost certainly asking for trouble and abuse on both sides.