FILE - This Feb. 8, 2007, file photo, shows a caution sign hanging on a fence at the EnergySolutions facility, in Clive, Utah. State regulators should stop relying solely on the honor system in its monitoring of companies bringing low-level radioactive waste into the state, according to a legislative audit. The auditors say that without independent oversight, it's impossible to know whether the privately owned EnergySolutions disposal site in Tooele County is burying illegal waste, The Salt Lake Tribune reported. The company says its processes are safe and claims it was "targeted" by auditors, noting the findings were based on "fundamentally flawed assumptions." (AP Photo/Douglas C. Pizac, File)