Physics of two dimensional massless Dirac fermions in graphene will be discussed. Primary focus of this talk will be the role of the 1/r Coulomb interactions, which are poorly screened and, combined with disorder, lead to interesting new many-body effects. Specifically, the combined effect of (Gaussian) random vector and scalar potentials and the Coulomb interactions will be argued to lead to a locally stable line of infrared fixed points at finite disorder and finite interactions. The minimal conductivity along this line will be shown to be non-universal and disorder dependent.