(September 8, 2016, 12:42 PM EDT) -- MINNEAPOLIS — Heart device maker St. Jude Medical Inc. on Sept. 7 sued a hedge fund and a cybersecurity research firm for defamation for issuing a report that St. Jude’s devices can be hacked and that patients should disable remote monitoring devices (St. Jude Medical, Inc. v. Muddy Waters Consulting LLC, et al., No. 16-03002, D. Minn.)....