1.   Democrats have blocked it because of a provision that would enable federal contractors to permanently replace strikers.

2.   Federal authorities need to address concerns that a legitimate treatment for seriously ill patients is being blocked because of broader fears of marijuana abuse.

3.   In all but one instance, the ban was blocked because of constitutional problems.

4.   In fact, Pacific Bell Internet originally told the Chronicle the mail was blocked because of an overzealous spam filter.

5.   Inner City has objected to dozens of bank mergers, though none were blocked because of fair lending concerns.

6.   Large areas are still blocked off because of unexploded ordnance.

7.   Maybe it was blocked because of timing.

8.   The camp entrance will be blocked because of property damage in years past, Hoover says.

9.   They have tried to get a job or obtain a mortgage, but have been blocked because of a stained credit file.