Yesterday, I wrote a post that explained, among other things, that people have a lot of trouble telling the difference between radical Islamists and moderate Muslims because the radicals hide what they believe.

Today, this story comes out of New York,

Allah board!

An Islamic group plans to blitz 1,000 subway cars with advertisements this September in a campaign being promoted by a Brooklyn imam whom federal officials have linked to a plot to blow up city landmarks.

The group says its mission is to explain the true nature of Islam to non-Muslims who believe the religion is bent on acts of violence - but Siraj Wahhaj, the inflammatory imam who appears in a promotional YouTube video for the project, has defended convicted bomb-plotters and called the FBI and CIA the "real terrorists."

US Attorney Mary Jo White even named Wahhaj one of 170 unindicted co-conspirators in the 1993 World Trade Center bombing and the thwarted plan to blow up a slew of buildings.

"In time, this so-called democracy will crumble, and there will be nothing, and the only thing that will remain will be Islam," Wahhaj said in one of his sermons.

The stark, black-and-white ads of the Subway Project promote Islam with the goals of clearing up long-held misconceptions about the faith and reaching out to those interested in becoming Muslim, according to the Islamic Circle of North America, the group behind the campaign.

Now, if you talked to the group behind these ads, the Islamic Circle of North America, they'd undoubtedly tell you that they're "moderate Muslims." But, whom are they buddied up with? One of the "unindicted co-conspirators in the 1993 World Trade Center bombing."

So, are they moderate Muslims or not? If the answer is no, should this group be allowed to run ads on the NY subways? If the answer is yes and they are moderate Muslims, why are they associating with a radical like Siraj Wahhaj?

Therein lies the problems: it's impossible to tell the radicals from the moderates most of the time because the moderates, for whatever reason, don't seem to have a big problem with the radicals in their midst.