21.   That is an important question in an industry that has thwarted numerous attempts over the years to eliminate the exploitation of its workers.

22.   The CIA last year reportedly thwarted attempts by Iranian agents to acquire rare weapons-grade nuclear material from the former Soviet republic of Kazakhstan.

23.   The dollar rose against the yen as concern over potentially snowballing bankruptcies in Japan thwarted another attempt by the Bank of Japan to buck up the yen.

24.   The Federal Aviation Administration has thwarted attempts to regulate flights over the park.

25.   The mines that Iraq placed along the Kuwaiti coastline is widely believed to have thwarted an attempt by the U.S. Marines to launch an amphibious assault.

26.   The move is likely to complicate and possibly thwart American attempts to have Saeed handed over to the United States for prosecution.

27.   The tobacco industry thwarted attempts in each of the past several years to raise federal taxes on its products.

28.   The U.S. government is taking steps to thwart any attempt to transport a nuclear device.

29.   There are a cab ride and a final nightcap, and during it all thwarted attempts at bonding, philosophizing and a lot of dreams.

30.   They defended the buildup of nuclear arms as a priority of national defense and a strategy needed to thwart Soviet attempts at political intimidation around the world.