This is an excerpt from an academic source – a report by a government commission. It gives evidence that internment harmed Japanese Americans economically. Exclusion from the West Coast imposed very substantial economic losses on the Nikkei. The complete picture of those losses is a mosaic of thousands of personal histories of individual families. Owners and operators of farms and businesses either sold their income-producing assets under distress-sale circumstances on very short notice or attempted, with or without government help, to place their property in the custody of people remaining on the Coast. The effectiveness of these measures varied greatly in protecting evacuees’ economic interests. Homes had to be sold or left without the personal attention that owners would devote to them. Businesses lost their good will, their reputation, their customers.

–Personal Justice Denied:
Report of the Commission on Wartime Relocation and Internment of Civilians,
1980

From the works cited page:

The Commission on Wartime Relocation and Internment of Civilians. Personal Justice Denied: Report of the Commission on Wartime Relocation and Internment of Civilians. 1982. National Archives. Web. 1 May 2014. .

List one detail that could serve as evidence that internment harmed Japanese Americans.