Dennis Clark, an Irish-American historian, wrote in The Irish in Philadelphia that the famine was "the culmination of generations of neglect, misrule and repression. It was an epic of English colonial cruelty and inadequacy. For the landless cabin dwellers it meant emigration or extinction...  
England had presided over an epochal disaster too monstrous and too impersonal to be a mere product of individual ill-will or the fiendish outcome of a well-planned conspiracy. It was something worse: the cumulative antagonism and corruption of the English ruling class was visited with crushing intensity upon a long-enfeebled foe. It was as close to genocide as colonialism would come in the nineteenth century."  
almost all
jinx: famines are caused by political factors. which is why pouring aid on them sometimes, maybe most often, just makes things worse.
maolmuire: Like when?