UH OH: GATEWAY ARCH CORRODING. “Almost 45 years into its reign atop the St. Louis skyline, the 630-foot monument is suffering from growing rust and decay. And nobody knows how extensive. Corrosion, some of it feared aggressive, and severe discoloration of the stainless steel skin have long been present, according to engineering reports reviewed by the Post-Dispatch.”

But what’s this? “A Post-Dispatch reporter was allowed to review the corrosion report for about 40 minutes earlier this month. But officials refused to make it available for a second look the next day, citing national security concerns and saying it should not have been provided the first time.”