These AC officials make unannounced facility inspections to ensure they are in compliance with regulations, and to identify unregistered facilities. They make such inspections or investigations of any dealer, exhibitor, research facility, handler, carrier, or operator of an auction sale, to determine if they have violated provisions under this chapter. Under the Animal Welfare Act, these facilities are to be inspected at least once a year, with follow-up inspections conducted until deficiencies are corrected. If deficiencies are found, failure to correct them could result in fines, cease and desist orders, suspensions, confiscation of animals and loss of licensing. There are also penalties for interfering with inspections. If the Secretary of Agriculture has any reason to suspect that any licensed dealer, carrier, or operator violates any provision of the AWA, then their license may be suspended temporarily, but not to exceed 21 days, until a hearing is held. After the hearing, the license may be revoked if the violation is determined to have occurred. Any dealer, carrier, exhibitor, handler, operator, or research facility that violates any provision of the AWA may be assessed a penalty of no more than $10,000 for each violation. Any person who knowingly fails to obey an order made by the Secretary of Agriculture is subject to a civil penalty of $1,500 for each offense. Any dealer, exhibitor, carrier, handler, auction operator, or research facility may seek a review of an order within 60 days at the United States Court of Appeals. The 2006 HBO film "Dealing Dogs" documents an undercover operation targeting a "Class B" kennel which treated dogs inhumanely, violating the Act. The owners of the kennel were fined over $200,000 as the result of a USDA suit. In 2011, the Dollarhite family of Nixa, Missouri, were fined $90,643 for selling several thousand dollars worth of rabbits without a license, which is required of people selling more than $500 worth of rabbits sold as pets. The USDA has increased enforcement of the law in recent years, targeting magicians who perform magic tricks with rabbits. In 1981, a graduate student and PETA member, Alex Pacheco, volunteered at a research center in Silver Spring, Maryland. At the time, Edward Taub was conducting research on monkeys for neuroplasticity purposes at that center. While Alex spent time at the research center, he noticed the inhumane treatment of the monkeys under the AWA and reported it to the police. He filed suit against Edward Taub, who was researching afferent ganglia.