Many of the scientists who have signed the statemetn against Bush have served prominently in the current and past Republican adminstrations. Some of the notable issues which Bush is criticized for are stem-cell research, reproductive health policy, drug policy, and environmental policy. For example, environmental scientists have been thwarted in their attempts to include full and accurate information about global warming in official government reports. Embryonic stem cell research is likely the most contentious for the current adminsitration. In 2001, President Bush restricted federal funding for stem cell research to a few dozen existing cell lines citing concerns that harvesting the cells destroyed human embryos. Bush's decision hampered medical research that could offer a key to curing many diseases. The stem cell debate came to a head at the Democratic National convention, where Ron Reagan Jr. broke rank with his father's political ties and spoke to advocate voting for Kerry - um, they meant embryonic stem-cell research, right?
The Bush administration has manipulated scientific information to suit political purposes and has based appointment of scientists to advisory panels based on political affiliations and beliefs. Qualifications, not party ties, should determine government scientific advisors.