From the new issue:
Questions for Jonathan Wells on The Myth of Junk DNA
Materialists have a longstanding love affair with the notion that life is a poorly constructed kluge. For decades, they have argued that since only about 2 to 3 percent of human DNA codes for proteins, most noncoding DNA is useless genetic junk.
As their argument goes, no designer would put such genetic garbage in our genomes, and therefore so-called junk DNA refutes intelligent design (ID). Random evolutionary mutations, on the other hand, might be expected to produce a genome full of what Francis Collins called "genetic flotsam and jetsam."
Proponents of intelligent design respond that we're just beginning to understand the workings of the genome, and we ought not to assume that noncoding DNA is unimportant. In fact, as scientists discover more and more about the workings of the genome, it is becoming evident that noncoding DNA performs many vital cellular functions. Far from being useless genetic garbage, "junk" DNA might be as important—or even more important—than the gene-coding DNA itself.