NEW YORK: The collection of people in tie-dyed T-shirts and star-spangled underwear have been camped out in a granite plaza in lower Manhattan nearly two weeks and show no signs of going away.

They sleep on air mattresses, use Mac laptops and play drums. They go to the bathroom at the local McDonald's. A few times a day, they march down to Wall Street, yelling, ''This is what democracy looks like!''

It all has the feel of a classic street protest with one exception: It's unclear exactly what the demonstrators want.

''When all the bailout money was spent on bonuses and stuff everyone was outraged, but no one did anything because no one feels like they can,'' protester Jesse Wilson, 22, said this week when asked to take articulate the cause. ''It's time for us to come together to realize we are the masses, and we can make things happen.''

But he couldn't say what, exactly, he wanted to happen. Handmade signs carried by some of the demonstrators - ''Less is More'' and ''Capitalism is evil'' - hardly make it clearer.

On Saturday, the group shut down part of the Brooklyn Bridge when they spilled onto the roadway from Manhattan in one of their many marches. Police arrested about 700 people while trying to clear the road and reopen for traffic.

But does it matter that the protest is vague? Academics and longtime activists give varying opinions.

''A lot of this revolves around economic justice, who gets what in this society, who has a safety net, who doesn't and how much corporate influence exists in Washington,'' said Bill Dobbs, an activist involved in the 2004 demonstrations at the Republican National Convention, and many others.

Dobbs and others say the group's lack of specificity serves a purpose because it invites outrage over a full spectrum of societal grievances. Indeed, some demonstrators say they are against Wall Street greed, others say they are protesting global warming and still others say they are protesting ''the man.''

The modern protester also expects an immediate response, thanks in part to technology, said Gabriella Coleman, a New York University professor of media, culture and communication who has studied some of the groups affiliated with the protest.

''We are in a cultural moment where people think the dictator will topple tomorrow, after four days of protests, and also the media is going to jump to pay attention,'' Coleman said.

There has been a growing swell of coverage in mainstream media, but there has been loud complaining the cause hasn't been championed fast enough _ or in the way protesters want.

Newspapers, The Associated Press and television stations have covered the protests, and editorials have both poked fun and lauded the effort downtown. National Public Radio, which hasn't aired stories, has fielded angry communiques demanding coverage.

''The recent protests on Wall Street did not involve large numbers of people, prominent people, a great disruption or an especially clear objective,'' Dick Meyer, executive editor for news, explained on NPR's website.

But observers say the approach can be difficult for media - and the average person - to digest.

''You should have a clear and convincing message, and know who is going to deliver it,'' said the Rev. Herbert Daughtry, a longtime civil rights activist who has participated in protests for decades. ''One of the reasons to get attention is to deliver the message.''

Misinformation has added to the confusion. For instance, a rumor sprang up on Twitter that the New York Police Department wanted to use tear gas on protesters _ a crowd-control tactic the department doesn't use. The organizing group that calls itself Occupy Wall Street retracted the claim, one of several such retractions over the past several days. On Friday, it sent out a message that Radiohead would be performing in solidarity for the cause. (The band's management said it wasn't playing). Clashes with police have resulted in about 100 arrests. Most were for disorderly conduct. Many were the subject of homemade videos posted online.

One video surfaced of a group of girls shot with pepper spray by NYPD Deputy Inspector Anthony Bologna. The woman claimed they were abused and demanded the officer resign, and the video has been the subject of several news articles and commentary. Police Commissioner Raymond Kelly said internal affairs would look into whether Bologna acted improperly and has also said the video doesn't show ''tumultuous'' behavior by the protesters. The Civilian Complaint Review Board is also investigating.

A group affiliated with the protest, Anonymous, later posted Bologna's personal details, including where his kids go to school. He has received threatening emails, said a police union spokesman, Roy Richter.

''Posting the information about a family police officer ... that's egregious and over the line,'' Richter said.