Gag orders protecting the privacy of convicted child murderers such as Mary Bell, Jon Venables and David McGreavy, in order to protect them from revenge attacks, have also been controversial because of public concerns about the inability to avoid such persons and protect victims' families and other children from being harmed by them. The Netherlands In The Netherlands, ethologist Gerrit van Putten was given two separate gag orders by the Minister of Agriculture to protect intensive farming. The first gag order was issued after Van Putten had published a report on tail biting in pigs in 1972, and had advocated that the pig's tail is a thermometer of animal welfare, which was discarded when the "temperature" became too high, i.e. the tails were docked rather than that housing conditions were improved. The second gag order was issued in 1989 by Minister Braks, who did not want to hear about the adverse effects of confined housing of pigs. In 2015, a Dutch court issued a gag order on writer Edwin Giltay, banning his non-fiction thriller The Cover-up General and prohibiting him to promote it. The suppression order denied Edwin Giltay to disclose the contents of the book, which delineates an espionage scandal within Dutch military intelligence that he witnessed first-hand, about obscuring evidence of war crimes in Srebrenica. In 2016, the Court of Appeal in The Hague revoked the gag order and the book ban. United States A national security letter (), an administrative subpoena used by the FBI, has an attached gag order which restricts the recipient from ever saying anything about being served with one. The government has issued hundreds of thousands of such NSLs accompanied with gag orders. The gag orders have been upheld in court. Suspicious activity reports (; the Housing and Community Development Act of 1992 / Annunzio-Wylie Anti-Money Laundering Act, , § 1517(b), ) require that "If a financial institution or any director, officer, employee, or agent of any financial institution [...] reports a suspicious transaction to a government agency—neither the financial institution, director, officer, employee, or agent of such institution (whether or not any such person is still employed by the institution) [...] may notify any person involved in the transaction that the transaction has been reported; and no current or former officer or employee of or contractor for the Federal Government or of or for any State, local, tribal, or territorial government within