A U.S. national park commemorating facilities related to the Manhattan Project, the secret wartime atomic bomb program, will include exhibits on the inhumane nature of nuclear weapons, a park official said.

The plan to display the damage caused by the U.S. atomic bombings of Japan during World War II is welcome news for atomic bomb survivors, who have strived to convey the horror of the weapons and the catastrophic humanitarian consequences.

"We intend to address this issue thoroughly and respectfully," said Kris Kirby, superintendent of the Manhattan Project National Historical Park.