NEW DELHI, Jan 29 (INP) Former head of Coalition forces in Afghanistan and former CIA Directo General Rtd General David Petraeus has said that Pakistan has legitimate concerns about some of their enemies having safe havens in eastern Afghanistan. General Petraeus, who recently visited India, in an interview with Indian Express said the anti Pakistani Taliban are in very rugged parts which Afghan security forces can’t control. However he said there needs to be a coordinated effort and a seriousness of reeling in these groups on Pakistani soil, rather than tolerate, on in some cases, may be as is alleged supporting them in some fashion. INP/AH