conducting most of its non-literary research. Influential scientific creationist Walter E. Lammerts complained that "[t]he main trouble is that Henry looks at this whole thing as a sort of 'missionary' effort rather than a scientific one." It maintained tax-exempt status as a religious institution carrying out "non-scientific research." In the early 1980s, the ICR severed its ties with Christian Heritage College to downplay its religious connections and portray itself as secular scientific institution. Ken Ham, a speaker and former high school science teacher in Australia, once worked for the ICR producing a series of seminars "Back to Genesis". In 1994 Ham left ICR to found what would become Answers in Genesis (AiG). Currently, at least one ICR staff member is also on staff at AiG. In 1985, the ICR helped Turkey's education minister Vehbi Dinçerler, introduce Islamic creationism in Turkish high schools. In 1987, the ICR's statement of belief was cited in the U.S. Supreme Court ruling of Edwards v. Aguillard. Justice Lewis F. Powell Jr. wrote that "If no valid secular purpose can be identified, then the statute violates the Establishment Clause." He continued noting information on ICR and Creation Research Society including "a review of their goals and activities sheds light on the nature of creation science." He then explained, "the intent of the Louisiana Legislature was to promote a particular religious belief" and the court ruled that teaching creationism was unconstitutional. In 1992, the ICR opened the Museum of Creation and Earth History. When the ICR moved from Santee, California to Dallas, Texas, the ICR sold the museum to the Life and Light Foundation, a non-profit ministry run by Tom Cantor, in 2008. With the Creation Research Society, ICR released statements in 2005 about the RATE (Radioisotopes and the Age of The Earth) project, providing a young-Earth creationist perspective on dating techniques like radiometric dating. RATE claimed that evidence supported over 500 million years of radiometric decay at today's rates but that it also supported a young earth. It speculated that nuclear decay rates must have accelerated by a factor of approximately one billion on the first two days of the Creation week and during the Flood. Non-affiliated experts who have scrutinised the claims have unanimously rejected them as flawed, noting that the integrity of science was compromised in favor of a message affirming the reliability of the Bible. RATE was chaired by Larry Vardiman and included