TTimes: 2011 Arc Wagering Triples in North America
There is an absence of actual numbers to back up this piece (since the totals weren't released by French authorities), but apparently Arc business in North America was up sharply in 2011. I have no idea if tripling the North American handle is going from $100 to $300 in total wagers, or $1,000,000 to $3,000,000.
