The War goes on.

Whatever the immediate political effect of the terrorist attack on London, I predict that the British will not respond as the Spaniards did, by blaming their own government, but will instead blame the folks who set the bombs.

I note that the apparent perpetrators blamed the British for being involved in Iraq and Afghanistan.  But Afghanistan was clearly a defensive action by America and her allies after America was attack in 2001.  Al Qaeda is saying, in effect, let us kill whom we will.  If you interfere, you'll be next.  There is no making peace with these folks.  We wish MI5 Godspeed.