Bullish bells may be ringing for Mongolian mining stocks, writes Jon Springer, thanks to the release from custody of SouthGobi Resources (OTC:SGQRF) chief legal counsel Sarah Armstrong. Turquoise Hill (NYSE:TRQ) - the majority owner of SouthGobi - has been battered since her arrest 2 months ago, and 2 SouthGobi execs were forced to flee the country just last week.