The Labor government is introducing changes to allow for easier background checks for any Australian wanting to access the US’s global entry program system, which allows for faster processing through US ports:

When implemented, the GEP will allow Australians access to expedited immigration and
customs channels when entering the United States. Australian citizens accepted into the
GEP are still required to meet any visa (or other immigration) requirements imposed by
the United States. The GEP is not a reciprocal program between Australia and the USA.
Australia’s participation in the program does not provide any equivalent benefit for USA
citizens traveling to, or arriving in, Australia.

In order to access the GEP, Australia has to do background checks of any Australian wanting to apply for the program. That means some changes have to be made to AusCheck (the body which does these background checks) to expand what they can look into it.

You can read more about that bill, here.