  We present a measurement of the t anti-t production cross section in p anti-p
collisions at s**(1/2) = 1.96 TeV which uses events with an inclusive signature
of significant missing transverse energy and jets. This is the first
measurement which makes no explicit lepton identification requirements, so that
sensitivity to W --> tau nu decays is maintained. Heavy flavor jets from top
quark decay are identified with a secondary vertex tagging algorithm. From 311
pb-1 of data collected by the Collider Detector at Fermilab we measure a
production cross section of 5.8 +/- 1.2(stat.)+0.9_-0.7(syst.) pb for a top
quark mass of 178 GeV/c2, in agreement with previous determinations and
standard model predictions.
