Yahoo! News reported A Europe-wide sweep disrupted an Islamic cell that was recruiting potential suicide bombers for attacks in Iraq and Afghanistan, Italian police said Tuesday, announcing the arrests of 20 terror suspects. Police said the suspects, mostly Tunisians, were arrested across Europe as part of the sweep against a cell based in the northern Italian region of Lombardy. Executing the arrest warrants, police said they found al-Qaida manuals for making explosives, detonation devices and poisons, and instructions on guerrilla techniques.
Apparently a "inner spiritual struggle" is a dangerous thing.The Lombardy cell had ties with a group in neighboring Emilia Romagna whose aim is to establish an Islamic state extending from Morocco to China, Italian investigators said. Intercepted phone calls made clear the aim of sending jihadist fighters to Iraq via Syria, including specific instructions on shaving off beards before departure to give the impression of making a "peaceful trip."
So if we see a Muslim with a beard we know it is not a "peaceful trip."