A family from Venezuela said they are waiting to be moved to a shelter outside O’Hare, where many migrants are staying in a curtained-off section of the airport.Pat Nabong / Sun-Times After a long trek to Chicago from Venezuela and other South and Central American countries, hundreds of migrants have landed at O’Hare Airport in recent weeks to find overcrowded, unsanitary and unpleasant conditions. Among the complaints in the airport shelter: …