This episode's headline: Violence Against Abortion; Civil Rights Issue: Police Roadblocks; Liquor Ads Under Fire; New Deductions. The guests include In Washington: NANETTE FALKENBERG, National Abortion Rights Action League; JANET CARROLL, National Right to Life Committee; JOHN CHAPOTON, Tax Attorney; In New York: RICHARD EMERY, New York Civil Liberties Union; In Denver: CORDELL SMITH, Colorado Highway Safety Director; Reports from NewsHour Correspondents: GRAHAM SHENTON (Visnews), in Rome; SPENCER MICHELS (KQED), in San Francisco. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor; JUDY WOODRUFF, Correspondent