Republican candidate Pat Buchanan is renewing a major theme of his past twocampaigns for the presidency. Buchanan says the so-called Railroad killerhighlights the problem of rising illegal immigration along the U.S./Mexicoborder. Buchanan says one-quarter of federal prisoners are illegal aliens.Buchanan says even in Iowa, illegal immigration is an issue asmethamphetamine rolls into Iowa from Mexico.Buchanan says there’s a “bleeding, open border” to our south. He saysit’s time to install triple-layer, chain link security fences at six bordersites, like El Paso, Texas and Douglas, Arizona, where illegal immigrantsare flooding across.Buchanan made his comments during an appearance on the Iowa PublicTelevision program, “Iowa Press.” Buchanan plans an appearance in Boone overthe noon-hour, then travels to Carroll, Cherokee and Algona.