A new study has found that just two countries would survive a nuclear war. It comes as tensions have heightened in recent days as America and Israel , both nuclear powers, have been firing missiles at Iran. Israel has been firing at Tehran, the I ranian capital, while the Taliban in Afghanistan have launched an assault on nuclear-armed Pakistan. The UAE yesterday said it continued to intercept missiles heading towards Israel as war in the Middle East rumbles on. It has led to concerns that wars