Tangelos resulted from a genetic cross between tangerines and grapefruit, for example.

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The lawsuits allege no actual damage but claim regulators failed to adequately consider the possible effects of genetic cross-contamination between genetically engineered and conventional crops.

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Small molecules in nature, mostly what are called polyphenols (resveratrol, quercetin, catechin, curcumin, others), as found in concentrated form in red wine, can cross the cell wall and enter the cell and influence genetic machinery.

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In any case, as Dr Church points out, there are myriad ways, ranging from hacking by miscreants to clever cross-referencing of public data and health records, that supposedly private genetic data could become public.

ECONOMIST: Genetics, medicine and insurance