U.S. stores are shipping to customers in Australia.
"International visitors are coming to American sites because of lower prices and the availability of products they cannot get in their own countries, according to Forrester. Macy’s has found that Australian shoppers are particularly interested in its trendy clothes, while Canadians want basics like coats, shoes and underwear." See NYT
What legal issues could arise for the U.S. sellers and the Australian buyers?