The person who saw the canine units was a coach from the University of Mississippi or Missouri.
Also, IMO someone knew this was going down ahead of time...why did the markets around the planet tank PRIOR to the bombing and then bounce back today. Odd coincidence.
Markets were almost opposite from geopolitics of bombings (i.e. not related). What happened over the weekend was a gold takedown and a lot of margin calls and stop losses. Those all kicked in Monday with the tamking of the gold price and commodities in general. The markets simply followed since they are based on not much more than commodity speculation.
If terrorism were really on the minds of the markets we would have seen gold up 6% yesterday (like 9/11) instead of down 6%. In short the Boston bombing was a nonevent for world markets.