Reuters: Thousands of U.S. schools sit along rail corridors used to carry toxic substances such as crude oil and would be at risk in the event of a derailment, an environmental group said on Tuesday as it called for a temporary halt on oil trains. ForestEthics said its analysis of U.S. Department of Education data show nearly 15,000 schools with 5.7 million students sit inside the so-called 'blast zone', the one-mile area along railroad tracks the U.S. Department of Transportation (DoT) recommends be evacuated...