11.   ADRs make trading foreign securities in the U.S. easier by eliminating currency exchange, legal obstacles, foreign ownership transfers and the need to trade on a foreign exchange.

12.   But British officials said talks were in a preliminary stage and faced complicated legal obstacles.

13.   But because of legal obstacles in Canada, the sharing has not been reciprocated.

14.   But a number of large companies are now finding ways to work around the legal obstacles and offer phased retirement, which can take many forms.

15.   But first a legal obstacle had to be overcome.

16.   But given the successes of the modern civil rights movement, the issue is no longer erasing such legal obstacles or boundaries.

17.   But while President Ernesto Zedillo agreed with President Clinton in May to negotiate such a system, Mexican officials have cautioned that they have serious legal obstacles to overcome.

18.   But until Netanyahu or Olmert initiate action to block it, there is no legal obstacle to the start of immediate construction.

19.   CHICAGO - Offering no new specifics and no timetable or a response to legal obstacles, Major League Baseball owners Tuesday reiterated their desire to eliminate two teams.

20.   Fears about future financing of the tribunals come at a time when a major legal obstacle to the proceeding has been cleared.