Quote:
Originally Posted by Russ
What, you mean like this place? 
If it was that easy it would have already been attacked, clearly repeatedly if someone with your wordly knowledge was involved  |
Not necessarily Russ. Its a matter of scale of destruction, and the logistics requirements to make a really big boom. While it would be relatively easy to get four blokes into the area around Westminster with a couple of pounds of home-made explosives and metal to do more damage from fragmentation. Its a much greater problem to gather 5,000 - 10,000 lbs of ammonium nitrate fertilizer, ignition and booster charges, detonators, and a reliable detonation system. Not forgetting the boat needed to carry said explosive device into the centre of London....
Big bombs, that make big statements, require a massive investment in time and resources. The more people involved, the higher the risk the operation will be compromised. Conversely, the fewer people involved, the more time required to gather all the kit needed, also increases the prospect of compromise....