  We re-examine the original model of Natural inflation, in which the inflaton
is a pseudo Nambu-Goldstone boson with potential of the form $ V(\phi) =
\Lambda^4 [1 \pm \cos(\phi/f)]$, in light of recent data. We find that the
model is alive and well. Successful inflation as well as recent data from the
Wilkinson Microwave Anisotropy probe require $f > 0.6 m_{\rm Pl}$ (where
$m_{\rm Pl} = 1.22 \times 10^{19}$ GeV) and $\Lambda \sim m_{GUT}$, scales
which can be accommodated in particle physics models. The detectability of
tensor modes from natural inflation in upcoming microwave background
experiments is discussed. We find that natural inflation predicts a
tensor/scalar ratio within reach of future observations.
