Mezue ahịrịokwu na-esonụ:
Nọt-East blackout nke 2003, nnukwu mpaghara ọkụ eletrik dara na mpaghara ugwu ọwụwa anyanwụ US na etiti Canada, metụtara ihe karịrị nde mmadụ iri ise na ise, ụbọchị iri na anọ eweghachiri ya kpamkpam.