This looks new to me. Fairly certain it is a siren, but I do not know what kind. http://maps.google.com/?ll=38.657465,-92.780271&spn=0.004223,0.022724&z=16&layer=c&cbll=38.657581,-92.780236&panoid=uLtnyLTVslFxlHyyxgqAkQ&cbp=12,133.93,,0,-11.73 That looks like one of those St...