President Obama denies North Korea can make a nuclear strike against the U.S. or its allies, claiming they cannot make a nuclear weapon miniaturized (small and lightweight enough) for missile delivery. The miniaturization myth never made sense technically and is contradicted by the defense community.
Causes of Esophageal Strictures. Esophagitis is the inflammation of the lining of the esophagus which often leads to swelling. Some of the common causes include chronic acid reflux (GERD / gastroesophageal reflux disease), infections or autoimmune causes (eosinophilic esophagitis).
This condition is caused by: 1  spasms in the lower esophagus (diffuse spasms or inability of the esophageal sphincter to relax) 2  tightness in the lower esophagus (due to an intermittent narrowing of the esophageal ring)  narrowing of the esophagus from growths or scarring.