(Associated Press Via Acquire Media NewsEdge) Data-breach costs take toll on Target profitBig changes ahead for frequent fliers on DeltaCollapse of exchange spells trouble for bitcoinWhat's a bitcoin? A look at the digital currencyMarkets choppy amid concerns over China and the USLowe's 4Q profit meets analysts' estimatesDollar Tree's 4Q profit falls on lower salesAbercrombie & Fitch 4Q adj. profit beats StreetFingerprint security convenient, but not flawlessLessons on salt for dietitians ... by a chip maker
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