Amtrak derailment A person carries survey equipment as he walks Sunday, Sept. 26, 2021, near an Amtrak train that derailed Saturday just west of Joplin, Mont. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment A person uses survey equipment, Sunday, Sept. 26, 2021, near an Amtrak train that derailed Saturday just west of Joplin, Mont. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment Workers examine a section of railroad track, Sunday, Sept. 26, 2021, next to cars from an Amtrak train that derailed the day before just west of Joplin, Mont., killing three people and injuring others. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment Heavy equipment moves gravel Sunday, Sept. 26, 2021, next to cars from an Amtrak train that derailed the day before just west of Joplin, Mont., killing three people and injuring others. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment A worker peers under an Amtrak train engine, Sunday, Sept. 26, 2021, that was part of a train that derailed Saturday just west of Joplin, Mont. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment Workers walk Sunday, Sept. 26, 2021, next to cars from an Amtrak train that derailed Saturday just west of Joplin, Mont. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment Amtrak train cars are shown, Sunday, Sept. 26, 2021, that were part of a train that derailed Saturday just west of Joplin, Mont., killing three people and injuring others. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment Engines and cars from an Amtrak train that derailed a day earlier are shown Sunday, Sept. 26, 2021, at the derailment site just west of Joplin, Mont.. The crash killed three people and injured others. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment A worker walks near an Amtrak train engine, Sunday, Sept. 26, 2021, that was part of a train that derailed Saturday just west of Joplin, Mont., killing three people and injuring others. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak derailment A worker peers under an Amtrak train engine, Sunday, Sept. 26, 2021, that was part of a train that derailed Saturday just west of Joplin, Mont. The westbound Empire Builder was en route to Seattle from Chicago, with two locomotives and 10 cars. (AP Photo/Ted S. Warren) (Ted S. Warren/AP)
Amtrak train The Empire Builder derailed in north-central Montana. (Kimberly Fossen via AP)
Amtrak train People inspect the damage on the Empire Builder after it derailed in Montana. (Kimberly Fossen via AP)
Amtrak train The Empire Builder is on its side after derailing near Joplin, Montana. (Kimberly Fossen via AP)
Amtrak train People assess the damage on Amtrak's Empire Builder, which derailed in Montana. (Kimberly Fossen via AP)
Amtrak train This aerial view taken Sunday shows part of an Amtrak train that derailed in north-central Montana that killed three people and left others hospitalized, officials said. (Larry Mayer/The Billings Gazette via AP) (Larry Mayer)
Amtrak train This aerial view taken Sunday, shows part of an Amtrak train that derailed in north-central Montana on Saturday. (Larry Mayer/The Billings Gazette via AP) (LARRY MAYER)