We should never allow government to have secret lists of people who need special watching. Its un-American.
That said, if it is not secret, and the reasons for being incorporated on the list are valid, it seems like a good tool to help first responders.
The problem always seems to be the JBTs want to keep it a secret. There is no reason whatsoever to keep the existence of the list a secret, or to keep secret the reason(s) why someone would get on the list.