site apparently digging new tunnel entranses. i was there when they were destroyed five years ago. now they re rebuilding new entrances that could signal a nuclear test by north korea as they try to develop new kinds of warheads. perhaps many warheads that could fit on the type of weapon that north korea has just tested. obviously this rapid pace of weapons, that s a troubling development for a lot of analysts. it seems as if right now given at that world is so distracted and focused on what s happening in ukraine, kim jong-un is just ramping up these weapons tests at an unprecedented pace, even more than what we saw during the fire and fury days. he s do not it unabated at this stage. wow. all right. will ripley for us. thank you so much. and coming up this hour, cnn s david culver, part of the only american tv crew living through the shanghai covid lockdown. he s going to report on his first few steps of freedom. also ahead, execs in the twitter boardroom taking extreme measure