Health risk from DU continues for a long time ONCE released into the environment. Its half life is 4 1/2 billion years, but it is environmental release (not half life) that increases risk.  Once released, the damage accumulates over the lifetime of an exposed individual and for the earth. However, there is time to limit dissemination into the environment/air.  

How? Stop stirring up dust.  Stop fragmenting large DU bits into aerosolized dust. Collect and pave/gravel/plant over contaminated fields.  And by all means stop using the DU weaponry (worldwide).  

But if there is denial that DU has been used, we ask for a survey to reassure the public that there is no threat.  Already there are insinuations that Hawaii's risk is minimal compared to risk in the mid-east wars.  But remember - health risk and damage resulting from DU in mid-east wars has been significant. Hawaii should avoid any health problems resulting from preventable exposure. Two wrongs don't make a right. 

the Authors