Rich Kulawiec writes in to point out that security expert Dan Geer is suggesting that merchants violate the security of customers they deem as security risks. His argument is, basically, that there are two types of users out there: those who respond "yes" to any request -- and therefore are likely to be infected by multiple types of malware doing all sorts of bad things -- and those who respond "no" to any request, who are more likely to be safe. Thus, Geer says merchants should ask users...