Not all developing countries are in Latin America; many are in Africa and Asia.
They are not called "Western" - as most western countries are developed, not developing. The correct answer is that they have less developed infrastructure, as their infrastructure is still developing.
The correct answer should be the Achilles' heel. Achilles had his heel as his weak spot and died after being hit with an arrow there.
The newspapers that used yellow journalism reacted when the USS Maine exploded in Cuba in 1898 by blaming Spain for the explosion. The encouraged the United States to declare war on Spain.