Here is another one of those solve for x. When Iran launched attacks on Israel, one got through and killed 28 people. They had over 6 hours to prepare, did they consider all outcomes? That one would get through? That it might hit that base? And that one of those people at the base should have been considering this outcome? Like I said, all it takes in one, did you solve for all var(x) + T(loc) = I ?