Big business became bigger during the 1980s, when deregulation legislation gave corporations more freedom. Wall Street witnessed an increase in volatile junk bond financing and illicit insider trading. Herb Block's cartoons from the period offer his commentaries on such issues as gun control, the environment, abortion, and televangelists. He took issue with President Reagan's domestic policies and foreign ventures in Lebanon, Iran and Central America. In June 1989, he drew a grim memorial to the dissidents killed by Chinese soldiers at Beijing's Tiananmen Square area.