Amazon pulled a bestseller on transgender issues from its online store on Sunday without explanation. Author Ryan T. Anderson tweeted on Sunday that his book, When Harry Became Sally: Responding to the Transgender Moment, had been removed. At the time of writing, the book was not available on Amazon either in physical form, as an e-book, or as an audiobook, although Anderson’s four other books remain up. Amazon’s crackdown on conservative content mirrors a trend many on the right see in other major tech companies. Criticism of big tech has spiked since Facebook and Twitter removed President Donald Trump following...