21.   But the Swiss government is now keen to lift any potential obstacles to market access accords with the EU.

22.   But the urgency and poignancy with which Butler spins his story overcomes this potential obstacle.

23.   But Vanguard faces potential obstacles with its new structure.

24.   By questioning consumers, he has also found that concerns about safety are an important potential obstacle.

25.   By permitting the networks to exclude minor candidates, the commission cleared away a potential obstacle to efforts to secure uniform free time for the major party presidential candidates.

26.   By permitting the networks to exclude minor candidates, the FCC cleared away a potential obstacle to efforts to secure uniform free time for the major party presidential candidates.

27.   Despite these potential obstacles, Sample is steadfast that USC will not lose money if the Coliseum undergoes a massive renovation.

28.   Even so, the Mariners would face another potential obstacle.

29.   Even as it appeared that Goldstein had enough votes, a potential obstacle to his selection emerged Wednesday.

30.   General Products also faces another potential obstacle.