answer:Because we only hear about countries that are involved with the US. So much is going on in the world that we don’t hear about. But as soon as USA has some kind of significant role, bam, we hear about it. I saw a documentary about Chechnya right after if was discovered that the bombings in Boston where caused by someone from Chechnya. The Boston bombings were of course sad, but not many people died compared to other parts of the world. But we don’t hear about those parts if they are not in some way connected to the US.