Oops! Salmonella Not In Honduran Melons

So says Honduran President Manuel Zelaya, who then publicly ate one.

Honduran President Defends Melons

So far, 50 people in the US have become ill by (it's thought) eating those melons, 14 of whom were hospitalized.

The grower in Honduras who the FDA says is the source of the contaminated cantaloupes, Agropecuaria Montelibana, has continued to sell to Europe and Central America, with no reports of illness.

So, if their melons were fine before they left Honduras, but not fine when consumers ate them, where did the contamination occur? Did it occur within the US? If so, is other produce vulnerable?
________Photo of Honduran President Manuel Zelaya eating melon via CNN story.