The international torch relay ahead of the Olympics in Beijing was dogged along the way by protesters supporting the Free Tibet Movement.

Does dog suggest hostility toward the torch carrier, therefore, trail is not a good substitute for it?

Thanks in advance!

The Longman Dictionary just says:
dog [verb] -- to follow close behind someone.
I think that "someone" usually has some sort of hostility.

The word "trial" wouldn't be substituted for "dog" because they don't mean the same.
The Longman Dictionary says:
trial [verb] -- to thoroughly test something to see if it works correctly or is effective

Thanks, Takoyaki. My dictionary agrees with yours on the definition of dog. However, I wanted to find out whether the word carries a sense of hostility that "Trail" does not. Note the spelling of Trail.
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It seems like we share the same opinion. Let's see what others have to say.
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