I can well imagine that the average Brit must bitterly regret the influx of so many bad eggs into UK.

I am sure that in Britain (as in many other countries besides) there were plenty of bad eggs there to start with. Terrorism is a personal philosophy - not a national one. These terrorists were Algerian but they number a few of the total population. In the bloody civil war in Algeria which still rages after more than a decade and which receives little or no mention in the press ordinary civilians are still massacred at the hands of their 'countrymen' not in the name of terrorism but to control power. Their tactics are terror so this bungs them in with the rest of the world's terrorists. The answer to this perpetual strife is not simple and is definitely not 'bomb the hell out of the country'. This will affect the ordinary person more than it does the terrorist. And this rationale applies to all countries - including Iraq. No, most of all Iraq.