Even the simplest cell is a nano-engineered marvel. Indeed, biologists now need to be engineers to understand life at the subcellular level. Contrast this with Darwin and his contemporaries, who saw the cell as extremely simple -- basically, they saw the cell as a blob of Jell-O enclosed by a membrane. No wonder Darwin never addressed the origin of life in his published writings. For him, the origin of life was not a problem. Rather, how life diversified once it got here was for him the problem. That's why he wrote On the Origin of Species rather than On the Origin of Life.
The theory of intelligent design confronts biology with an immediacy of design that many scientists, committed as many of them are to a materialist worldview, are reluctant to accept. But for true scientists, this reluctance must be justified by evidence and not by an allergic reaction to design that is the result of cultural conditioning. Twenty years ago, Oxford biologist Richard Dawkins asserted that "the evidence of evolution reveals a universe without design." A lot has happened since then, with the evidence of biology now revealing a universe chock-full of design. President Bush is therefore completely on target in wanting intelligent design taught in the public school science curriculum.