In another twist in the decades-long battle over evolution's status in public school science classrooms, state legislators are arguing that teachers have a right to raise doubts about that essential scientific theory as a matter of free speech. Similarly worded bills that attempt to protect the right of educators and students to present critiques…

Some members of Congress have raised objections to what they see as a steadily diminishing role for the National Science Foundation (NSF) in mathematics and science education, a shift that backers of the agency say curtails innovation and increases the potential for political interference in school research. At a May 3, 2006, hearing of the House…