I've been exploring the sound files for anything useful. I haven't found much I'm afraid, but I did come across some ANN news audio that I've never heard and I'm wondering if anyone else has. I'll transcribe them for you:
"Cerberus has struck again, this time on the colony of Caleston."
"The dome covering the city of Syneu was sabotaged, causing an untold number of residents to be suffocated."
"Disruption to element zero mining on Caleston is driving prices up throughout the traverse."
"Attempted sabotage was thwarted by Calestonian defence forces. Security master general Atrius Tarn credits the timely action to a tip off from a maintenance worker."
"Tarn has come under recent criticism for his creation of internment camps for Calestons human minority."
These aren't the only pieces of news audio that I've found that I've never heard, here is another:
"In the next hour: Victory on Noveria, spirits are high as a Reaper capital ship goes down."
"The cause; reports of Rachni, a race that's been classed as Extinct for millennia."
I don't know if the two are related, the sound files are one after another, so it is possible they are linked.
Well, if you'd heard it ingame or any idea what it relates to.
Easiest way to locate a snippet of dialogue is to do a search for it in the Gibbed dump. Copy a section of a line and do a Ctrl+F. That will locate it in the dump, allowing you to see what Bioconversation and file it's located in. From there, just follow the conditional checks to see what plot conditions trigger the dialogue.