America releasing biological weapons into their own country
Sometimes, you ask yourself why the United States have such a big anti-terrorism apparatus when they obviously do everything to get the same effect as a terrorist attack:
Now just to put that into perspective - the US - probably rightly so - believe that islamic terrorists want to infect the population with infections diseases like ebola or smallpox.
And now they release an illegal immigrant back into the US population with a drug-resistant turbecolosis, ready to infect other US citizens and legal foreign residents.
Obviously, they don't need terrorists to release biological agents into the US, the US authorities are doing it themselves.