I realize that our enemies are not stupid and probably have thought of this. However, articles like this still make me uneasy. There's always the possibility that I (we) over-estimate the intelligence of the enemy and so why point out our vulnerabilities for all to see?,
Our enemies are very intelligent, nobody here saw 9/11 coming (some would argue Tom Clancy's novels and a few other authors predicted such an event).
Better the citizens be prepared than be in the dark (not just literally).