Former first lady Michelle Obama on Sunday urged the graduating class of 2020 not to ever let anyone tell them that they are “too angry” in the wake of the Wuhan coronavirus pandemic and the death of George Floyd. “Over these past couple of months our foundation has been shaken — not just by a pandemic that stole too many of our loved ones, upended our daily lives, and sent tens of millions into unemployment, but also by the rumbling of the age-old fault lines that our country was built on: the lines of race and power that are now,...