Welcome to The Highlighter #84 — and if you’re not on the East coast, welcome to Spring! (My apologies for daylight saving last weekend, which loyal subscriber L. calls “the worst day of the year.”) This week, as our country figures out health care, false claims of wiretapping, and the President’s tax returns, I bring you woolly mammoths, segregation, virtual reality, and Justice Sotomayor on the loose. Please enjoy!