Two infinite, straight, parallel wires, each carrying current I in the same direction, are coincident with the lines (1,0,z) and (-1,0,z). In addition, there is a large external field B_0 = B_0(z_hat). An atom (mass M) whose magnetic dipole moment m_0 is always anti-parallel to the local magnetic field direction can be trapped at the origin. What is the approximate frequency of small oscillations in the vicinity of the origin?