Torchwood Online Game Mission # 9

After opening Fischer's laptop, Torchwood discovers several documents which point to a terrible truth: an alien invasion is under way! Alien DNA has been implanted into clients of the Venus Clinic by New Eden scientists. For now, the DNA is inert, but it will be activated by some sort of signal, and once activated the alien cells will take over their hosts' bodies. The goal for Mission # 9 is to find out what that activation signal is. Unfortunately, the clues for this mission aren't particularly helpful, but going over research from previous missions provides the answer. Here are the documents provided:

1) A secret memo written by New Eden's CEO, confirming that alien DNA has been implanted. Apparently, the four deaths of cosmetic surgery patients (discovered in a previous mission) occurred from failed implantation. New Eden has named their plan "Project Prometheus" and reports that activation of all carriers will take place on March 21st.

2) Notes written by Fischer about his discovery of Project: Pegasus, the March 21st "Metamorphosis" date, and his speculation that the alien cells must have arrived via meteorite.

3) A newspaper clipping reporting on a meteorite falling to Earth and being recovered by New Eden.

4) A magnified look at an "alien stem cell."

5) A letter to New Eden from university scientists complaining that New Eden hasn't made the meteorite available for outside research.

6) The usual note from Ianto reminding the investigator to listen to Dark Talk.

7) A short video by Tosh reminding the viewer that New Eden does stem cell research.

8) This week's episode of Dark Talk which is devoted to the theme of witchcraft. A psychic calls in claiming to be able to predict what will happen next to Torchwood, but she's mysteriously cut off before she can say more. A woman calls in saying she arrived at a fancy hotel only to discover all the staff dozing and a black SUV peeling off (i.e., Gwen & Rhys' big wedding).

None of this material seemed particularly promising, so I hazarded a few random guesses. The game is nice enough to give you a clue after a wrong guess, and one of the clues is "What else has New Eden been working on?" I went back to my first post on Mission # 1 and saw they've been working on ultrasonic research.

The answer for Mission # 9 is "ultrasonic".