Asset management giant BlackRock is taking notice of bitcoin as investors look for alternative stores of value, according to chief investment officer Rick Rieder. Rieder commented on BlackRock's interest during an interview with CNBC's Squawk Box Wednesday morning. He said the asset management giant "is starting to dabble" in the cryptocurrency, but did not elaborate further on what that means for its operations. Rieder said that interest in bitcoin is growing as people look for alternative stores of value. "My sense is the technology has evolved and the regulation has evolved to the point where a number of ... (full story)