 At the National Mall and Memorial Park's headquarters, Scott Gelman, WTOP News. Coming up here after traffic and weather on WTOP, John Deere is laying workers off. You can surmise what that may mean for farming right now. And OSHA considers a new regulation to protect workers against heat stress, relatedly. Stay with us tonight. It's 836. And here's today's This Week in History, presented by United Airtemp. Comfort that stands the test of time. FaceBuds were celebrating this week in 1937 with the introduction of Spam.