US industry no longer a jobs fix
The economy is bound to play a huge role in this year's US Presidential election, with both candidates vowing they can get workers and production back up to healthy levels.
The US is responsible for almost a fifth of the world's manufacturing output - second only to China.
But while the death of the US factory has been greatly exaggerated, Michigan's automotive industry is a sound example of how factories have changed beyond recognition.
Jonny Dymond reports from Michigan.