I think the headline would be much better like, "Wikileaks Global Intelligence File Dump Contains a Great Deal of Malicious Software."
The problem is "loaded" which has two rather different meanings in this context. "X is loaded with Y" can just mean that X contains a lot of Y, but it can also mean that someone loaded a lot of Y into X. If you go for the second meaning, which is an entirely natural reading of the original headline, then the headline is saying "Someone (such as the NSA or their friends) put a lot of malware into this stuff."
As to the "why" question (which for the record was not mine) I don't think it's justifiable to use a misleading headline just because the information is important. Although I imagine the misleading nature of this headline was entirely unintentional.
You leave me wondering if you read my comment, since "it depends on how you parse loaded" is most of what I said, and I explicitly gave the author the benefit of the doubt by saying it was probably unintentional.
The problem is "loaded" which has two rather different meanings in this context. "X is loaded with Y" can just mean that X contains a lot of Y, but it can also mean that someone loaded a lot of Y into X. If you go for the second meaning, which is an entirely natural reading of the original headline, then the headline is saying "Someone (such as the NSA or their friends) put a lot of malware into this stuff."
As to the "why" question (which for the record was not mine) I don't think it's justifiable to use a misleading headline just because the information is important. Although I imagine the misleading nature of this headline was entirely unintentional.