Evacuations reduced in California chemical tank emergency after worst-case explosion risk eliminated

CNN, KCAL , KCBS, KABC, AMERICAN RED CROSS, KCAL / KCBS By Nina Giraldo, Taylor Romine, Emma Tucker, Alaa Elassar, Holly Yan, CNN (CNN) — Officials racing to prevent an overheating chemical tank in California from exploding breathed a small sigh of relief Monday after confirming a crack in the structure had helped reduce pressure