Since the announced troop withdrawal by Obama, Taliban's forces have increased their aggression and boldness. They are getting closer and closer to approaching Kabul, and many analysts believe that the troop withdrawal does not reflect what is actually happening on the ground.
This is what the Taliban always do, though. They try to scare the public and officials as much as they can, because their numbers are not much. Their true power is fear and making people believe that they are powerful.