In message , Tim
Streater wrote

What does disposing of safely mean? I'd advocate dumping it in a
deep-sea trench (30,000 ft deep or more) where it'll all be subducted
into the earth'c crust.



Just shove them down an oil pipe to stop it leaking
--
Alan
news2009 {at} admac {dot} myzen {dot} co {dot} uk