New York ? Pornographic movies now seem nearly as pervasive in America’s hotel rooms as tiny shampoo bottles, and the lodging industry shows little concern as conservative activists rev up a protest campaign aimed at triggering a federal crackdown.

A coalition of 13 conservative groups – including the Family Research Council and Concerned Women for America – took out full-page ads in some editions of USA Today earlier this month urging the Justice Department and FBI to investigate whether some of the pay-per-view movies widely available in hotels violate federal and state obscenity laws.

By some estimates, adult movies are available in roughly 40 percent of the nation’s hotels, representing more than 1.5 million rooms.