The COVID pandemic has revealed the U.S. defense industrial base to be "not healthy" and hampered by "weak" supply chains that threaten the ability of the nation to nimbly develop and field new capabilities to keep ahead of technological advances by other nations, according to the Pentagon's No. 2 military official. Gen. John Hyten, vice chairman of the Joint Chiefs of Staff, said the coronavirus pandemic has exposed weakness in the defense industrial base -- a mammoth patchwork of more...