We dedicate this memorial because we have an obligation to future generations to record the crimes of the 20th century and ensure they're never repeated.

我们为这座纪念碑举行落成典礼，因为我们有义务让未来子孙记录下20世纪的罪行，并保证未来不再重蹈覆辙。

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By Marc Goodman, Chair for Policy, Law and Ethics at Singularity University and Founder of the Future Crimes Institute.

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Karen Pollock, of the Holocaust Educational Trust, says the memorial day offered a reminder to future generations of the dangers of hate crimes.

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"Crimes like selling small amounts of drugs do not just cancel the future of our young people, but lead to social decline in communities, opening the door to illicit activities, " Mr Calderon said in a televised address.

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