The proof of that is the explosions you have seen in the capitals of European nations. The delay in similar operations happening in America has not been because of failure to break through your security measures. The operations are under preparation and you will see them in your homes the minute they are through (with preparations), with God's permission.

I do believe that our security measures are making a difference, although that may change if those hell-bent on eliminating them do win out. However, this quote is very true regarding preparations. There is little doubt that these terrorists are perpetually scheming and preparing to bring death and destruction to free people wherever they might exist.