Mid-Afternoon Market Update: Dow Tumbles Over 500 Points; Rekor Systems Shares Plummet

Toward the end of trading Tuesday, the Dow traded down 1.54% to 34,206.70 while the NASDAQ fell 0.19% to 13,376.83. The S&P also fell, dropping 1.01% to 4,146.05. The U.S. has…