Excellent article at Reason by Robert Corn-Revere (of which I copy a whole lot).
The demise of Roe v. Wade has unleashed a flurry of activity by antiabortion activists looking for ways to finish the job. They are now exploring ways to stop people not just from performing abortions but from sharing information about abortion services.
The National Right to Life Committee (NLRC) has drafted model legislation to provide what it calls "an effective enforcement regime" to stamp out abortion. A centerpiece of the proposal would make it a felony to "aid and abet" abortions by "giving instructions over the telephone, the internet, or any other medium of communication regarding self-administered abortions or means to obtain an illegal abortion" or "hosting or maintaining a website, or providing internet service, that encourages or facilitates efforts to obtain an illegal abortion." The law would provide for civil enforcement as well.
These legal tactics and messianic zeal bring to mind Anthony Comstock, the most prominent anti-vice crusader of the 19th and early 20th centuries. Comstock started in 1872 as a vigilante, making "citizen's arrests" of smut peddlers on the streets of New York. But he quickly became, in the words of H.L. Mencken, "the Copernicus of a quite new art and science," one "who first capitalized moral endeavor like baseball or the soap business, and made himself the first of its kept professors."
Comstock had his own model law, which he persuaded Congress to adopt in 1873. It said that no "obscene, lewd, or lascivious book, pamphlet, picture, paper, print, or other publication of an indecent character, or any article or thing designed or intended for the prevention of conception or procuring of an abortion, nor any article or thing intended or adapted for any indecent or immoral use or nature…shall be carried in the mail." This was popularly known as the "Comstock law," and Congress designated him a special agent of the Post Office, vested with the power to enforce the law personally.
Comstock also headed the New York Society for the Suppression of Vice. From these twin positions, he terrorized writers, publishers, free thinkers, birth control advocates, physicians, and artists, jailing thousands and driving at least 15 to suicide. Near the end of his 40-year career, Comstock claimed to have convicted enough people "to fill a passenger train of sixty-one coaches, sixty coaches containing sixty passengers each and the sixty-first almost full." Comstock's law targeted obscenity, but in his mind, anything that related to sex was obscene. This covered information on contraception or abortion, including that found in popular home health guides, such as Edward Bliss Foote's book Medical Common Sense.
Comstock died in 1915, just days after his successful prosecution of William Sanger, husband of birth control advocate Margaret Sanger, for handing out one of his wife's pamphlets on family limitation. Death ended Comstock's career, but not his influence on American law. That didn't happen until much later, as the Supreme Court adopted more robust First Amendment protections for freedom of expression—including, specifically, speech related to abortion and birth control.