Senator Dodd -- what does that mean for the chances of getting fin reg passed this year, both on a substance level and on a political level?

WHITEHOUSE: Press Briefing

Tritium is a low level radioactive substance, considered one of the least dangerous by the EPA. State and federal regulators say that tritium leaks pose no threat to public health and safety.

NPR: Officials Probe Spills at Illinois Nuclear Power Plant

"Indeed, at yesterday's staff interview of former FEMA Director Michael Brown, agency lawyers advised Mr. Brown not to say whether he spoke to the president or the vice president, or comment on the substance of conversations he had with any other high level White House officials, " Lieberman said.

CNN: Lieberman: White House hindering Katrina probe

Cases that reach the appellate level are sometimes murky, involving possible mental illness, substance abuse or other complex issues.

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