Photos of trucks full of leaking detergent and spoiled food reveal a big challenge for Family Dollar

Rogelio V. Solis/AP

• Dollar Tree is considering selling Family Dollar almost a decade after acquiring it.
• Photos show one issue for the troubled chain: Products getting crushed in transit to stores.
• Dollar stores opened thousands of new stores in recent years but also faced operational issues.

Three times a week, a truck driver reports to a distribution center for Family Dollar in Florida and picks up a trailer...