Here is the link to the National Geographic article about finding her after 17 years. There is a plethora of information online about this amazing story.
Topic B - Restrepo and/or the war in Afghanistan.
Here is the link to the official website for the movie. You can also find a huge amount of information online or (I suggest this strongly) you can read the book War by Sebastian Junger to experience a more vivid portrayal.
Topic C - Opium
Afghanistan leads the world in opium production, supplying about 75%. Here is a link to a recent National Geographic article called Afghanistan's Opium Wars. Some of the money made from this illegal trade inevitably funds the Taliban and other Islamic extremist groups.
Once you find a web link, video clip, or news item relating to your topic post them on your blog. Write several paragraphs explaining what you learned or found interesting about the subject.