In a New York Times op-ed, Silas Kpanan’Ayoung Siakor, an award-winning environmentalist and community activist in Liberia, and Rachael S. Knight, director of a legal-empowerment group, say that President Ellen Johnson Sirleaf may be sowing the seeds of discontent by handing over huge tracts of land to foreign investors and dispossessing rural Liberians. Between 2006…