access to dbms_fga package on shared server

Hi,

I manage an Oracle Database 10g R2 on Red Hat Enterprise Linux 4, the 
server is shared between a few customers: each customer has access 
(CONNECT and RESOURCE priveges) to his own schema only, he cannot access 
other customers objects.

One of our customers just asked EXECUTE privilege on the dbms_fga package.

I'm new to this package and I'm not sure what would be the consequences 
of such grant.

Can I safely grant that to the customer in question without compromising 
the security of other customers data on the shared server?

Thanks.