Facebook’s managers are deploying a new software upgrade that will dismantle myriad groups of like-minded political activists unless they get a special software-key from the company. But Facebook manager are providing very limited information about which groups are being favored with the new key, prompting some activists to complain about possible political favoritism among Facebook managers, and many other activists to experiment with techniques and tricks to get the needed upgrade-key. “Who is being given the upgrade?” asked Pamela Geller, the New York organizer of a 15,000-member group opposed to Islamist political groups. Without the special key, groups lose access...