Quoted: Dominique Brossard, who studies public perceptions of controversial scientific topics at the University of Wisconsin, which holds many of the usable embryonic cell lines, said she was surprised the Republican Party platform would include language on stem cells in 2012. ?I was surprised to hear that they were going to add that issue because as far as public opinion is concerned, this is an issue that wasn?t really defined by party lines,? she told Salon.