RaveNPRIt\'s surreal dialogue, the sort of thing that feels like a promise and only later turns out to be an omen. And like all Cantú\'s dialogue, it weaves in and out of paragraphs without quotation marks, so nothing interrupts the sense of someone relating a long and terrible dream ... The Line Becomes a River is caught halfway between memoir and tone poem, as Cantú offers snapshots of his life in and around the Border Patrol ... Cantú punctuates his brutal reminiscences with pointedly detached academic interludes, sketching some of the issues on each side of the border and bringing outside voices to his increasingly unsettled inner monologue ... The way Cantú navigates the deportation process is more direct than what comes before; this is a case study ... Beautifully written though the book is, it\'s a rough read ...a beautifully-crafted question; the answer has yet to be written.