He said he [1] collects knives. That's his story, and he's sticking to it. "Man tries to board plane at Baltimore airport with 13 knives," by Rebecca Ruiz for [2] MSNBC.com, July 14 (thanks to Kenneth):

A 24-year-old Baltimore man tried to board a flight last week with these knives in his carry-on luggage.

Amr Gamal Shedid was attempting to fly from Baltimore Washington International Airport to Minnesota on July 7 when a security officer operating an X-ray machine noticed something suspicious and discovered the 12 switchblades and a butterfly knife in the flier's luggage, according to Sgt. Kirk Perez, a spokesperson for the Maryland Transportation Authority Police. Shedid told officers that he collected knives.

The man did not appear to be involved in a plot or a threat onboard the plane. "We don’t have any indication to lead us to believe anything along those lines at this time," said Perez.

Of course! Who ever heard of a Muslim trying to bring a weapon onto an airplane?