Are you trying to scare yourself unnecessarily?
Since 9/11, everyone in charge has been thinking our cities and rail system. Also, every attack since 9/11 has gotten smaller and smaller in terms of effectiveness.
Also, aircraft are mass transit. There is no "next" for USA mass transit, it's already happened here.
NYC subway has a vulnerability. Some of the tubes run close to the underground water tunnels that bring in fresh water from upstate NY. Worst scenario is a subway train exploding near this water line, crack it and cause flooding in the entire subway system. If the NY subway system is knocked out by three foot of water (which takes out the signal sensors on the tracks) for several months, the economic toll on NYC will be immense. Most of the workers in the financial center and other businesses rely on the subway to commute into the city. If the workers cannot get to their jobs, most financial activities come to a halt.
I wonder what the reaction would be to suicide bombers arriving in the US. 9-11 was one thing, we could distance ourselves somewhat from the event, but if they show up right in our own neighborhoods? Well, that's a different story.
Based on this comment, my guess is that you are not very familiar with the subways in London.
It is something we do have to be vigilant about, but I am sure homeland security is well aware of it. I do not bury my head in the sand and think nothing will happen here again, but I do know it won't be quite as easy now.
I wouldn't count on bringing a city down that way. The Brits slept in the underground during the blitz. I believe the subways under New York are cut through granite. The subways under Moscow are the deepest in the world due to the protection the ground offers.
All bombing a subway does is kill people.
nah,too small...they were aiming for the collapse of the British psyche.....um,it didnt work either...
worried about our trains etc?....sure,they might....MIGHT,get one in on us....and,well,if that were to happen,...payback is a b#%ch....
seriously,pull that crap here,just try it....it will only lead to great harm to your co"religionists" here....
There is a breaking thread on a train wreck in Pakistan. No updates yet.
moderator should pull this foolish thread
Collapse downtown London? With 10 lb. bombs? More likely our security services have been a lot more efective than we've heard if that attack is all they can muster. Suicide bombers are good at terrorizing the populace but they have never been strategically successful and are a sign of desperation. Eventually they run out of volunteers and have to resort to trickery and blackmail.
Any further attacks on American soil must result in internment camps. End of game.
I worry more about the freeway system here in Southern California. An attack on the Metro trains would be a hassle for commuters. Somebody goes after the big freeway interchanges...things would get ugly.
Where there's smoke ... they arrested a cell in Lodi, not too far from San Francisco (~70 or 80 miles). The area around there is the SF as the Midlands are to London. How many more cells still lurk? Of note, there are a number of Pakistani heavy mosques right here in the Bay Area, preaching what?
You mean those that are run by the "government" and the ones that seem to always be out of money. Those?
I say let em fail, and we'll be better off in the long run.

The Alaska Railroad has been on alert since London. Even before. If they hit the Alaska Railroad, well, it would be like that time a dozen oil tankcars got off the rail and went in the creek. What a mess.
Keep your own fears to yourself. This isn't news and obviously, you haven't the glimmer of an idea, just how much has been and is being done, to keep N.Y.C. subways and tunnels and bridges safe.
The president is in control here. Nothing to worry about. Move along.