They couldn’t possibly have time to monitor all those words even if they didn’t take smoke breaks.
This is just baseless hysteria.
I only have 60 or so friends on facebook and I see similar words used every day.
Perhaps if they have some other reason to have a person under surveillance, they might check his/her posts for certain words, but this is just silly.
Oh yah......maybe there is a *fusion center* committed to *analytic excellence* in your very own backyard: http://www.dhs.gov/files/programs/gc_1296484657738.shtm
Oh, they certainly do monitor the words, using software and databases. But it would take more than a smattering of common words for the matter to be referred for human attention.