<i>&gt; Guns and grenades are not that hard to get, even in Europe.</i><p>Not hard to get, but when you&#x27;re talking about dozens of assault rifles, someone somewhere will know what is going where. If your intelligence people are worth their salt, of course.<p><i>&gt; whether some of those people were let in under the guise of &quot;refugees&quot;.</i><p>Yeah, because it&#x27;s extremely effective to drop your people for months in a Turkish refugee camp, hoping that 1) they will survive in shocking conditions, 2) they will be processed and sent to France, or 3) they will jump on a dinghy and make it to the other side (when chances are that they will just sink), or 4) they will walk through half a dozen borders on high alert and across unsympathetic countries. Pure tactical genius.<p>More likely, these people had good passports and went through friendly airports smelling of roses. Once on-site, they were armed by existing networks that the French security apparatus still doesn&#x27;t know how to infiltrate effectively. That&#x27;s so much easier than leaving people to their own devices across two continents and hope they&#x27;ll somehow manage to make it to la Gare du Nord at 10 o&#x27;clock on Friday morning.