Ambiguity/Correct position of the Modifier

While I was reading news on the online version of a popular national English daily the other day, my attention was caught specially by the following headline of a news item:-

Tens of prisoners shot in Tunisia jail escape

Such heading immediately led me to think, "There are tens of prisoners shot in Tunisia jail but they escape."

After I had gone through the news in full, I realized that was not the intended meaning. The gist is in the word 'escape' which was treated as a verb in my earlier interpretation.

The writer has used it as a noun in the intended meaning. Of course, the ambiguity can be done away with if the modifier is placed in front: In Tunisia jail escape tens of prisoners shot.

This is the main reason that to avoid ambiguity, modifiers must be placed in their correct positions in any phrases/clauses/sentences.

The Past Perfect Tense is used instead of the correct Present Perfect Tense

The past perfect (pluperfect) tense can be seen to be used to describe the earlier action or occurrence in a sentence where two actions or occurrences in the past are stated.

This is not so in the case of the following sentence found in the section highlighting the various sections that are contained in a particular issue of a popular national English daily.

We should all learn from the past, and 2010 had offered us a few lessons where health is concerned.

However, in the particular section itself the correct version appears therein.

We should all learn from the past, and 2010 has offered us a few lessons where health is concerned.

The mistake in the earlier version could be just a typesetting error or a mistake subsequently corrected by the editor.