Before revision:  We present an elegant iterative rounding scheme for the MFN relaxation that yields an approximation guarantee of \left(10+67\right)/2 \approx 9.0927, a significant improvement upon the previous LP-based ratio  due to An et al  in~2014.
After revision:  We present an elegant iterative rounding scheme for the MFN relaxation that yields an approximation guarantee of \left(10+67\right)/2 \approx 9.0927, a significant improvement upon the previous LP-based ratio due to An et al . in~2014.