内容摘要：“This is a classic example of what the founders worried about,” said Richard Painter, a law professor at the University of Minnesota and former White House ethics chief under Bush. “But I don’t think the founders anticipated it would get this bad.”

“This is a classic example of what the founders worried about,” said Richard Painter, a law professor at the University of Minnesota and former White House ethics chief under Bush. “But I don’t think the founders anticipated it would get this bad.”

Ashaninka Indigenous women participate in tug-of-war during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Sunday, June 23, 2024. (AP Photo/Jorge Saenz)Ashaninka Indigenous people from Brazil and Peru dance and sing at dawn during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Monday, June 24, 2024. (AP Photo/Jorge Saenz)

Ashaninka Indigenous youths from Brazil and Peru compete by racing up the trunk of an acai tree during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Sunday, June 23, 2024. (AP Photo/Jorge Saenz)Ashaninka Indigenous youths from Brazil and Peru compete by racing up the trunk of an acai tree during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Sunday, June 23, 2024. (AP Photo/Jorge Saenz)Apolima-Arara Indigenous men pose for a picture during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Monday, June 24, 2024. (AP Photo/Jorge Saenz)

Apolima-Arara Indigenous men pose for a picture during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Monday, June 24, 2024. (AP Photo/Jorge Saenz)Apolima-Arara Indigenous youth Ozileia Macedo, right, puts face paint on Antonio Acassio Avelino de Oliveira, during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Monday, June 24, 2024. (AP Photo/Jorge Saenz)

Apolima-Arara Indigenous youth Ozileia Macedo, right, puts face paint on Antonio Acassio Avelino de Oliveira, during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Monday, June 24, 2024. (AP Photo/Jorge Saenz)

Ashaninka Indigenous musicians from Brazil and Peru perform during the annual celebration recognizing the Ashaninka territory in the Apiwtxa village, Acre state, Brazil, Monday, June 24, 2024. (AP Photo/Jorge Saenz)The helicopter was not equipped with flight recorders, and no onboard video recorders had been recovered, NTSB said.

Hemendy said the NTSB would not speculate on the cause of the crash so early in the investigation.The main and rear rotors of the helicopter, along with its transmission, roof and tail structures had still not been found as of Friday, she said.

“We are very factual, and we will provide that in due course,” she said.Justin Green, an aviation lawyer and former Marine Corps helicopter pilot, said videos of the crash suggest that a “catastrophic mechanical failure” left the pilot with no chance to save the aircraft. It is possible the helicopter’s main rotors struck the tail boom, breaking it apart and causing the cabin to free fall, Green said.