File photo from July, 2012 shows then healthcare minister Zurab Tchiaberashvili (left) and then PM Vano Merabishvili (right) during a visit to one of Tbilisi’s medical centers. Former PM Vano Merabishvili, who is now UNM secretary general, and ex-healthcare minister Zurab Tchiaberashvili, who is now governor of Kakheti region, were arrested on May 21. The …