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But that requires user vigilance — and not being careful can have consequences.—ABC News, 15 Apr. 2026 In summary, when facing the threat of lightning, vigilance and preparedness are your best allies.—Southern California Weather Report, Daily News, 13 Apr. 2026 In summary, when facing the threat of lightning, preparedness and vigilance are your best allies.—Southern California Weather Report, Oc Register, 13 Apr. 2026 In summary, when facing the threat of lightning, vigilance and preparedness are your best allies.—Bay Area Weather Report, Mercury News, 12 Apr. 2026 See All Example Sentences for vigilance