Nothing.
Politically, one of the biggest "manipulations" was from the Abortion Activists 50 years ago now.
quote
"Former abortion-rights activist Bernard Nathanson admits that he and his cofounders of NARAL fabricated the figure that a 1,000,000 women were getting illegal abortions in America each year. The average, he says, was actually 98,000 per year. Nonetheless, the abortion advocates fed their concocted figures to the media, who eagerly disseminated the false information."
...."Research confirms that the actual number of abortion deaths in the twenty-five years prior to 1973 averaged 250 a year, with a high of 388 in 1948. In I966, before the first state legalized abortion, 120 mothers died from abortion. By 1972 abortion was still illegal in 80 percent of the country, but the use of antibiotics had greatly reduced the risk. Hence, the number dropped to 39 maternal deaths from abortion that year." http://www.abortionfacts.com/facts/12