"The frontier of science" is a metaphor that has become ubiquitous in American rhetoric, from its first appearance in the public address of early twentieth-century American intellectuals and politicians who aligned a mythic national identity with scientific research, to its more recent use in scientists' arguments in favor of increased research funding. Here, Leah Ceccarelli explores what is selected and what is deflected when this metaphor is deployed, its effects on those who use it, and what rhetorical moves are made by those who try to counter its appeal. In her research, Ceccarell