Dawn hits a home run again. When Kerry stated this, I had the same thought: make a complaint, but offer no option or solution. I expect that sort of behavior from a small child, not a Yale graduate.
Granted, there are issues with the color-code system, the basic one being the "the little boy who cired wolf" syndrome, ergo, you can only go from yellow to orange so many times (without anything happening or the arrest of parties who clearly were about to attack) before the impact and utility of the color codes starts diminishing.
On the other hand, changes in the codes still do immediately raise general awareness of potential risks, and may actually affect terrorists. For alll we know, certain attacks that were planned may have been cancelled because the color codes raised security at something they had specifically targeted.
Now, all Kerry has said is he will remove them. For the sake of argument, let's assume that happens. Then what is the scenario when the authorities get major new information about potential risks? Do they make any public annoucements? And if the potential risks are generic (as they always are, ergo, "we have evidence that terrorists may be planning to use truck bombs, but don't know where or when"), what does Kerry think the public is supposed to do without specific guidelines (which the current color codes provide)?