For Arabs and Muslims across the Puget Sound area, a rise in the nation's threat level or a bombing halfway around the world often can mark a period of unease.

In the years since the Sept. 11 terrorist attacks, leaders in that community say incidents of profiling and harassment have ebbed and flowed — increasing when Muslims are linked to news of the day.

Now the FBI's release of photographs of two men of unknown origin, who the agency says were observed acting suspiciously aboard as many as six different Washington ferry routes in recent weeks, is creating new worries in the community.

Muslim- and Arab-American leaders are upset that the FBI didn't consult them — as it has done in other instances — before releasing the photos on the Internet and to news organizations. They worry that the action may fracture the relationship the agency and the community have carefully built.