And in other nuclear-materials-gone-missing news...

From Canada: Record nuclear thefts raise fears about security failures.

A record number of low-level radioactive materials, the kind terrorists could fashion into dirty bombs, have gone missing in Canada this year, raising concerns about the effectiveness of federal controls over nuclear materials.

News of the jump in thefts and lost material coincides with an International Atomic Energy Agency (IAEA) meeting in Europe at which nuclear counter-terrorism specialists were told this week of an almost four-fold increase in nuclear smuggling since 2006, a further indication that al-Qaeda-inspired radicals may be trying to obtain radioactive material for a bomb.

...As of Wednesday, 26 radioactive sources have been reported lost and stolen so far this year in Canada, compared to 15 last year and a dozen in 2005, according to the Canadian Nuclear Safety Commission (CNSC), the federal nuclear regulator.
Fourteen devices this year remain missing, twice as many as last year when six were not recovered and almost three times the five still missing from 2005.