  G320.4-01.2 is a complex radio and X-ray source, coinciding on the sky with
the young energetic pulsar B1509-58. A young pulsar embedded in a SNR would
seem to accord with expectations, but previous observations suggest that all
may not be what it seems. Controversy persists over whether the pulsar and the
SNR are associated, and as to what causes the remnant's unusual appearance. To
answer these questions, we have undertaken a set of high-resolution radio
observations of the system. We present the results of this study, which provide
new evidence that PSR B1509-58 is associated with and is interacting with
G320.4-01.2.
