Today is Tuesday, Feb. 18, the 49th day of 2020. There are 317 days left in the year. Today's Highlight in History: On Feb. 18, 1970, the "Chicago Seven" defendants were found not guilty of conspiring to incite riots at the 1968 Democratic national convention; five were convicted of violating the Anti-Riot Act of 1968 (those convictions were later reversed). On this date: In 1546, Martin…