The Secretary—

(1) may procure the temporary or intermittent services of experts or consultants (or organizations thereof) in accordance with section 3109 of title 5; and

(2) may, whenever necessary due to an urgent homeland security need, procure temporary (not to exceed 1 year) or intermittent personal services, including the services of experts or consultants (or organizations thereof), without regard to the pay limitations of such section 3109.