Chairboy, I did I miss your answer to these questions earlier in the thread?
Could you give me specific examples of what has replaced the presumption of innocence? What checks and balances are short-circuited?
On the trains/homeless issue: What is your feeling about only ticketed passengers being allowed inside the airport security perimeter? (Inside the metal detectors, basically?) How would you feel about the same system when applied to train stations, in light of London's recent experience?
On the Mayfield arrest, apparently they had what they thought was ONE fingerprint of his on the Madrid bombing evidence. Rightfully, the FBI memo says this isn't enough to arrest him. I'm OK with that. Apparently, they want to keep him around as a "material witness" based on that one print until they either get more evidence to arrest him or fail to get any and remove him from consideration. They appear to have some fear that if it hits the papers that they're looking at him, he'll flee before further evidence either way is unearthed. So, when it hit the papers, they held him as a "material witness" and let him go in two weeks when nothing further indicated he was part of the plot.
What would you have preferred, that they ignore the one fingerprint and if he WAS in on the plot take the chance of him escaping? Or hold him until they could indict or clear him for sure?