Additional risks include amniotic fluid leakage and bleeding. Packaging must also resist leakage and corrosion. Contamination from fires and radioactive waste leakage plagued the facility under Dow's management. Cuffed tubes can be inflated to the extent needed to prevent air leakage. These weatherstrips are critical to reduce to a minimum energy losses due to air leakage. An oily anal leakage or some level of fecal incontinence may occur. A CT scan can identify the site of a cerebrospinal fluid leakage. It applies the necessary voltages to a device and monitors leakage current. The resulting sensitivity to fabricational variations complicates optimization for leakage and performance. Medical systems include monitoring devices to warn of any increase of leakage current. In addition, power loss occurs as a result of leakage currents. This improvement is achieved mainly by developing transistors that cause significantly less leakage. Incomplete evacuation is also one of the factors implicated in the cause of fecal leakage. Rarer complications may include bruising, meningitis or ongoing post lumbar-puncture leakage of CSF. Its reactor had significant radiation leakage and fishermen protested against the vessel's operation.