The Portland, Maine bungled bomb tossing is inevitable, especially when one considers the frothing insanity directed at Occupy Wall Street by the right wing noise machine, that one of the myriad of dupes whom are cocooned in Scumbaugh-esque blather would act out in such a manner.
The cynic in me believes that is the point of the blather.

Not only is this sort of terrorism inevitable, it has a long and ugly U.S. history.
For example, during the late 1960s, after the Counterculture was driven out of the cities by police brutality and gentrification, it evolved into the Back-to-the-Land Movement, which established rural communes throughout the country. While some of these communes were whimsically short-lived, many more became functional farms, and some endured well into 1980s.

Meanwhile both urban and rural forms of harassment and terrorism -- the latter including violently anti-commune vigilante groups typically organized around (fundamentalist) Christian churches -- continued without letup.

Credible evidence suggests most if not all of these campaigns of oppression were clandestinely encouraged, advised and even financed by the federal government, with behind-the-scenes perpetrators including the FBI (Operation COINTELPRO) and the CIA (Operation CHAOS).

The involvement of Christian churches in these sorts of programs is itself an old story, witness the colloquial name for the Ku Klux Klan: "the Saturday Night Men's Bible Study Class."

Such is capitalist governance, then as now: absolute power and unlimited profit for the Ruling Class, total subjugation and genocidal poverty for all the rest of us.

While COINTELPRO mostly targeted the Civil Rights and Anti-Vietnam War movements, CHAOS attacked literally every aspect of the Counterculture, its press, communes and especially its efforts to develop non-ecocidal alternatives to capitalism.

Apparently CIA's analysts -- most of them Ivy-League-educated aristocrats -- possessed sufficient knowledge to recognize the Counterculture's "revolution in consciousness" as a modern resurrection of the nature-centered, matrilineal, originally matriarchal paradigm that governed all humanity until only about 4000 years ago.

Just as the poet Gary Snyder wrote in his seminal work Earth House Hold, it was an ethos that had tragically been absent from Western consciousness "since the destruction of Knossos."

The CIA's analysts must have therefore (correctly) perceived the emergent mindset as the ultimate threat to capitalism -- an evolving sensibility far more dangerous than secular Marxism alone -- and advised their Ruling Class masters to respond accordingly. Hence the relentless, near-total destruction of the Counterculture within a single decade.

Though the Occupy Wall Street movement has none of the Counterculture's metaphysical nurturing -- the Ruling Class will never again tolerate revival of the ancient bardical office of tribal poet that was briefly resurrected by the musicians of the 1960s and early 1970s -- OWS nevertheless implicitly recognizes capitalism as manifest evil and challenges it accordingly, demanding a new economy both humane and environmentally aware.

Thus it reopens an ancient doorway through which might eventually flow the same vision that not only evoked the Civil Rights, Feminist, Environmentalist and Anti-Vietnam War movements but inspired Tim Buckley to pen his genuinely immortal tribute to the goddess he took as his personal deity: "If you tell me of all the pain you've had/ I'll never smile again."

Which is precisely why -- doubt it at your own peril -- the agents of capitalist governance are again at work encouraging vigilante actions exactly like the bomb-throwing in Maine last night.

(Disclosure: Actively involved with Occupy Tacoma, I speak here only for myself, not for the Occupation or any of its work groups.)

For freak sake! It was either a drano or dry ice bomb!

If someone was truly intending to cause harm and damage, then they would have done it with a pipe bomb. Just a couple of boneheaded teens looking to cause mischief.

Don't get me wrong, they need to be held responsible for their actions and hopefully they will be discovered, investigated and appropriately charged under the law.

If convicted, perhaps a part of their community service should be trash & cleanup detail at the Occupy Maine site! Put them to work cleaning pots and pans at the food tent and thus get to know the individuals they put in harms way. Now that would be appropriate karma!

Passive resistance uses the force against itself to counteract that same force. Recall the dogs and fire hose incidents in the Civil Rights movement, it did more to bring support than it did to stop what inevitably would become something far removed from the people hurt in those incidents. The more the forces of evil become aligned against those who are passively resisting, especially when they are voicing an opinion that seems to be strongly that of the 99%, the larger the movement will become. In this incident, on the positive side, no one was hurt, but a more positive reaction to it is likely to be forthcoming.

Visual things work. May I suggest an additional way to occupy?
A decent symbol for the 99% is the bare base of the PYRAMID from the Great Seal on the back of the dollar bill. No cap/eye, just the base.

Find square cardboard boxes, cut and tape them into that shape and let them sprout up all over the country... it's OUR pyramid with the plutocracy whooshed off the top. Public property. Might help give the movement a little focus, too.