what she said about a white colleague s black son and why her partial resignation may not by enough to quiet her critics. plus, one of the most inconvenient and important cancer screenings, what a new study says about how well colonoscopies works. welcome to the lead. i m in for jake tapper. russia as bombarded ukraine can more than 80 missiles in eight regions. monday s was the most intense stretch of bombing. russia is clearly targeting civilian infrastructure, walkways, water and power stations, even a playground hit. so far 11 people have died, dozens more injured. putin says it is revenge for this, a saturday morning attack on the bridge that connects russia to crimea. the explosion was a strategic attack, its dependence on rail. and for putin, it s personal. he made it a point to drive across this bridge when it opened back in 2018. the attack came just a day after his 7 0th birthday. frederik pleitgen has this report. reporter: it was in the middle of monday mor