Daily Finance – Following the footsteps of Macau, Singapore, and the Philippines, Japan appears poised to clear away regulatory barriers and allow legalized gambling in casinos. Analysts at Citi believe that Japan could become the second-largest gambling venue in Asia after Macau. Japan could generate gross gaming revenue of $13.4 to $15 billion annually. The topic of opening a casino in Singapore can be traced back to 2005 when key legislation and administrative infrastructure were put in place. Five years later two integrated casino resorts opened their doors, Las Vegas Sands ‘ Marina Bay Sands and Resorts World’s Sentosa.  Within…