It's no secret that this particular anniversary of 911 is as dangerous a time as we have faced in years. ISIL has recruited possibly more than a thousand people carrying US passports, who can enter and leave this country at will. There is no evidence that US intelligence knows who they all are, or perhaps who any of them are.
The threat is coming up from Mexico, which means that San Diego's huge naval facility, the Port of Los Angeles and the Port of Houston are the most available strategic targets. Of course, Washington and New York remain the most desirable targets, and the threat to them should not be underestimated. There is also a background of media concern that ISIL may be smuggling nuclear materials into the US. It also must be remembered that Malaysian Airlines Flight 370 still hasn't been located, and my previous warning about that plane remains in force.
There is little question in my mind but that the US and possibly also the UK are immediate ISIL targets, and I would advise anybody who lives in a target area to take precautions similar to those suggested for an earthquake kit. Additionally, in the event that a dirty bomb is detonated, you should understand that the chief danger here, aside from being hit by the immediate blast, is public panic. The type of radiation likely to be present in a dirty bomb is not going to be all that dangerous or persistent, but the panic that it spreads will be phenomenal.
The best response is to get as far as you can from the site, to remove your clothes and shower thoroughly if you think you might have been exposed to dust or smoke from the bomb, to put on clothes from as deep in closets as possible, and to remain indoors and away from windows until the radiation danger has passed. If you have a Geiger counter, use it.
Just as I hope that the methane outgassing I wrote about last week is a tempest in a teapot, I hope that this terror threat fades without incident. But I fear, in both cases, that the threat is very real. The methane threat is some years away, but the terror threat is right now. Be aware.