If suspicions are founded as actual threats I will do anyone of the following and probably more.
FISA request
Look into your credit card records and bank transactions
Serve your host/ISP with a request and also get your SSL private keys
Listen in on your cell phone/home phone/sat phone
Use traditional listening devices (these are great btw..)
Find an exploit in something you use (I'm pretty sure I have some zero days lying around).
Listen in on your girlfriend/wife/husband/boyfriend/friends and family.
Create lots of tor exit nodes and track your patterns
Ask some actual spy's/moles for some intel
Use satellites and tracking devices, maybe even some drones
Torture
Wait for you to mess up..people are lazy.
I made this to point out some real tactics that are actually used and why the vast majority of PRISM related posts like these are a bit silly...aka..you're probably not a terrorist. The NSA tracked bin Laden's courier Abu Ahmed al-Kuwaiti's cell phone which eventually led them to Bin Laden. Does that sound like anything you're doing?
The NSA is not above the law and I generally support Snowden, William Binney, etc .. I just think people need to get grip on reality here. The only people tracking you are ad trackers.
ps. Don't fret too much about the NSA, Google Glass will have citizens spying on each other in no time flat.