According to the BBC, the company NMT Medical has stepped up its libel action against a local hospital consultant, Dr Peter Wilmshurst of the Royal Shrewsbury Hospital.
Please support the Libel Reform Campaign, if only to sign its petition. It is trying to get the law changed to (amongst other desirable aims) make it more difficult to try to suppress inconvenient scientific debate by using the libel law.
Note that a big company does not have to win its case to use English libel law to suppress discussion. Just defending his case will cost Dr Wilmshurst a huge amount of money. English libel law costs around 140 times as much to defend as the European average, so much valid discussion is suppressed without ever coming to court.