Lord West of Spithead (Lab)

My Lords, it is easy to look on this as some sort of playground bravado by President Trump, who clearly did not understand the implications of, or what was meant by, the trials of delivery systems that Putin was conducting. With him having made his statement, President Putin wanted to show how tough he was and made his statement about doing tests again. This would be probably quite amusing if it was not so incredibly dangerous. The comprehensive test-ban treaty is one of the few treaties regarding nuclear weapons that are still in existence; many have fallen by the wayside. We are less safe than we used to be because of that. If the comprehensive test-ban treaty is broken, it opens a Pandora’s box. All of us will be far less safe. That is extremely worrying. I know the Minister cannot say very much in response to my Question—in effect, it was nothing, but those are wonderful. However, even though something may not happen because the Department of Energy in America is unable to do a test straight away—it will take a couple of years and cost billions of dollars, so this thing may go away— and even though, as he says, it is their business, does he believe that the Government should make it very clear to the Americans how much we support keeping the test ban treaty in place and that we will be very disappointed if there is any break to that?