Reply #8: Electrical impedance scanning is a novel (and non-magical)

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imaging technique based on differential electrical conductivity and capacitance of malignant and normal human tissues. EIS is a potentially useful imaging modality for differentiating thyroid neoplasms.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15827796&query_hl=3&itool=pubmed_DocSum

This is one way to electrically differentiate malignant vs. healthy tissue. So, why would "magical phenomenon" necessarily be required to make use of electricity to kill malignant while sparing healthy tissue?