Greeceโ€™s Voula Papachristou has been sent home for a racist tweet:

A Greek triple jumper has been expelled from the Olympics after she posted a racist joke on Twitter. . . .
Her offending message โ€“ which was referring to reports of mosquitoes carrying the West Nile virus in her home country โ€“ read: โ€˜With so many Africans in Greece, at least the West Nile mosquitoes will eat home made food!โ€™