The U.K. openly authorized Ukraine to use maximum-range Storm Shadows to strike targets in Russia.

Russia threatened to retaliate by striking targets in the U.K. if this happens, but the U.K. is not afraid, nor should they be.

Russia is just not going to launch a first strike against NATO no matter what we give Ukraine or what Ukraine does with it (nuclear weapons excepted). The Brits know this, and we should know it after long-range ATACMS strikes were an escalation nothingburger. We should start acting like we know it.