Of course it does. However, as long as we have hundreds of Wahhabi-funded fifth-columnist islamofascist mosques operating in the US, they (and at least a few of the Americans they convert) will find ways to subvert us, no matter how tight our security is.
Moreover, the tragic downfall of "mainline" Christianity makes the islamists believe they can win over the "corrupt, decadent" US. Think, for example, what most muslims (and even more so islamofascists) think when the "mainline" denominations accept homosexuality, and when they don't lift a finger or even protest when Christians are persecuted in islamic countries.
Rome's Envoy to Saudi Arabia Converts to Islam
It is not just the U.S. that has the problem. Jews have been resisting for centuries but there seems to be a breakdown of resolve among the nations.