Sioux City Journal: Backers of the state's beverage container deposit law released poll numbers Thursday showing strong support among Iowans for retaining or expanding the bottle bill to make more cans and bottles subject to the refundable nickel deposit. Pollster Ann Selzer said a poll of 700 active, registered Iowa voters found nearly 9 of 10 respondents saying the deposit law has been good since its inception in 1978.