The White House has commented on the nuclear threats made by Russian dictator Vladimir Putin, saying that US President Joe Biden has been briefed on the matter, according to the White House spokesperson Karine Jean-Pierre. “The President certainly is aware,” she said. The White House spokesperson added that Putin reiterated Russia’s nuclear doctrine once again. She labeled Putin’s rhetoric as “irresponsible.” “Nevertheless, Russia’s nuclear rhetoric has been reckless and irresponsible throughout this conflict. It’s — it is Russia that brutally invaded Ukraine without provocation or justificati…