A fungus called coffee rusts is currently causing damages of more than $1 billion across Latin American region coffee farms, and it is affecting the prices of coffee in the United States. ...But Raj Shah, head of the USAID, said their main concern is not only on the rising price of coffee but more on the economic security of small farms abroad. He said that if farmers lose their jobs, it escalates poverty and hunger and poverty region and this will add to the problem of violence and drug trafficking.