Procedural discussion of Rule 21 motions and amendment standards in a civil case

The passage only outlines legal standards for adding parties under Rule 21 and cites case law. It contains no specific allegations, names, financial flows, or connections to powerful actors, making it Cites Rule 15 standards for evaluating Rule 21 motions. References case law on amendment prejudice and merit considerations. Mentions Jane Doe 3 and Jane Doe 4 as placeholder parties.