00370nas a2200121   4500000000100000000000100001008004100002260002100043100002100064700001700085700001900102245012700121       2023                            d  bRAND Corporation1 aJoanne Nicholson1 aSean Keeling1 aMarigold Black00aCountering Violent Extremism Online: Understanding Adversity and Adaptation in an Increasingly Complex Digital Environment