Fukushima Daiichi Killing Robots, Too

The Fukushima Daiichi nuclear power plant disaster continues to fester away, even after 6 years. The continuing radiation leakage is hindering further attempts at mitigation and cleanup, even robots sent in to monitor and observe are keeling over faster than expected.
Gamma rays will turn wiring brittle, which is a real issue when attempting to build a mobile robot. It can also damage electronic circuits (again, this depends on the type of radiation and the materials used to construct the necessary components).
Extreme Tech