 Sam's Club will now require a $50 minimum order for online orders getting free shipping. CBRE says half of new leases and lease renewals in northern Virginia last quarter were defense and engineering companies. The Dow lost 31 points Monday. The S&P 500 and the Nasdaq both closed at record highs again. Jeff Claybaugh, WTOP News. Asia-Pacific markets are mixed. Australia is up 1%. Tokyo stocks up 1.5%. Hong Kong is down 0.5%.