As market participants prepare to submit comments on the recent proposal of the UK’s Financial Conduct Authority (the “FCA”) (available here) to require the temporary publication of a “synthetic” 1-, 3- and 6-month USD LIBOR, some have voiced concern that such a compelled publication of a synthetic USD LIBOR could precipitate a wave of litigation over whether certain U.S. law-governed contracts will be able to fall back to contractually agreed alternative rates in June 2023.