Miami was right tp take the threat seriously. One of these days one of these threats will be dead-on correct. Whoever does NOT take threats seriously and then an attack ensues, will be immortalized as having been the direct cause of whatever damage or mortality occurs. If nothing else, it fosters preparation of the population affected.
http://www.usnews.com/usnews/politics/bulletin/archive/bull040929b.htm
http://www.defenselink.mil/news/Sep2004/n09272004_2004092704.html
http://www.emediawire.com/releases/2004/9/emw161596.htm