Attorney General William Barr Bill BarrFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Why a backdoor to encrypted data is detrimental to cybersecurity and data integrity FBI official who worked with Mueller raised doubts about Russia investigation MORE expressed opposition to LGBT curriculums that do not provide opt-out provisions for those who oppose it on religious grounds.

He also expressed his belief that religious schools should be allowed to turn away teachers who are in same-sex marriages in a speech on Friday at Notre Dame's law school

"Many states are adopting curriculum that is incompatible with traditional Judeo-Christian principles. ... They often do this without any opt-out provision for religious families," Barr said.

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He particularly cited laws in New Jersey, California and Illinois requiring an LGBT curriculum.

"The Orange County Board of Education in California issued an opinion that 'parents who disagree with the instructional material ... may not excuse their children from this instruction,'" he said, lamenting that in some cases parents are not "warned" about the material.

"For anyone who has a religious faith, the most important part of exercising that faith is teaching that religion to your children," he said. "For the government to interfere in that process is a monstrous invasion of religious liberty."

Barr also cited support for schools that do not hire teachers in an LGBT marriage, citing the example of a teacher who sued Indianapolis's Catholic Archbishop.

"Right here in Indiana a teacher sued the Catholic Archbishop of Indianapolis for directing the Catholic schools within his diocese that they could not employ teachers in same-sex marriages," he said. "This lawsuit clearly infringes on the First Amendment rights of the archdiocese by interfering both with its expressive association and with its church autonomy."