Quantify "Many" for me.
We're not ignoring any real red flags, Banat, as demonstrated by the arrest by Bosnian authorities of Bektasevic and his cohorts.
We are, however, based upon recent experience, inclined to view as false the red flags which you and your friends are waving, since they've turned out to be more about pushing a Serbocentric agenda (everybody else bad, ergo we good, so cut us some slack for what we did under Milosevic) rather than one concerned with actual anti-terrorism.
The problem is the rampant Serbophobia that oozes out of some influential circles in the West where everything that comes out of Serbia is treated with suspicion. Fine. See if Belgrade cares. After all, first and foremost, Belgrade's duty is the security of Serbian citizens and the BIA, DJB and others know how to deal with terrorism.