are to do, that actually, if he does use these dreadful weapons, many people will actually survive. i have to ask, without pre—empting your book too much, what is the solution? what is the advice — what should civilians do? there are three key things that you have to do. first of all, don't go underground. or, if you are underground, come above ground. the gas generally sinks underground, and in syria, it killed people underground. or, as they streamed above ground, they were easy pickings for snipers, or captured. so, get to higher ground. also, always be aware where the wind is going because this stuff blows away on the wind pretty easily. simple things with chlorine — we tell people to hold their breath and run across a wind for 30 seconds, and then you are out of the downwind hazard, the danger area. and thirdly, decontaminate as quickly as you can. that might mean taking your clothes off.