Document itertools.product().
diff --git a/Misc/NEWS b/Misc/NEWS
index 2e63c82..5848dba 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -635,6 +635,9 @@
 - itertools.count() is no longer bounded to LONG_MAX.  Formerly, it raised
   an OverflowError.  Now, automatically shifts from ints to longs.
 
+- Added itertools.product() which forms the Cartesian product of
+  the input iterables.
+
 - Patch #1541463: optimize performance of cgi.FieldStorage operations.
 
 - Decimal is fully updated to the latest Decimal Specification (v1.66).