"...I hope he has the backbone to continue to do whatever it takes to make sure it doesn't happen again....."

And just what might that be?

We are not battling a country here. These are individuals, often from several countries, who just want to cause as much disruption as possible. Often they make no demands, claim no credit, and are difficult to fathom as to what they actually want or hope to achieve.
They just want someone to suffer for imagined slights to some 'cause'. YOU tell Obama....and other world leaders.... how to track them, identify them, and/or stop them! They have killed a few of THIS batch, but you know there are others in various countries just waiting. They may even have little or no knowledge of the goals & plans of the others...

Yes....there is a 'usually' common identifier in that they ARE Muslim, but they seem to be a minority....

I have said before that *I* consider that getting Muslim leaders & clerics all over the world to teach and condemn this sort of terror will be about the only way to make a dent in the problem.....

we shall see.