1.   A booming economy, low unemployment and years of peace have made it difficult to replenish the graying ranks of white supremacists.

2.   A fresh blanket of snow makes it difficult to see exactly how wide a swath the Merced and its feeder creeks cut.

3.   Additionally, the stalemate over economic union makes it difficult to assess the costs of insurance or mortgages arranged abroad.

4.   All of the background noise made it difficult to have a phone conversation.

5.   Arthritis made it difficult for him to do everyday things like take out the garbage or mow the lawn.

6.   As an important by-product it will also make it difficult for prospective bidders to build up stakes in secret.

7.   But his lack of experience and robotic speaking style made it difficult for him to keep pace with Dole.

8.   But physical disabilities can make it difficult for you to express your sexuality.

9.   But the countries say worldwide economic competition makes it difficult to eliminate child labor altogether.