Nightly News | May 19, 2012
>> security precautions were already high this weekend as preside oba prared to sit down with world leaders here in the u.s. at two important summits, and tonight as he wraps up, one of those gatherings, a meeting at the g-8 at camp david concerning the euro crisis. police in chicago say they've unravelled a violent plot tied to tomorrow's nato summit there. three men are under arrest, accused of planning a series of monthly top of cocktail attacks agains police stations and other targets. chicago has been under virtual lockdown as the president and a host of world leaders prepared to discuss the war in afghanistan , but thousands of protesters have also descended on the windy city , and tonight some of them are calling the arrest a not so veiled warning. we have full coverage of both summits starting with kristen welker in chicago .
>> reporter: authorities say these three men were in the process of making monthly taf cocktails to target president obama 's chicago campaign headquarters. the residents of mayor rahm emanuel and chicago police officers ahead of this weekend's nato summit . the men, all from out of town, were arrested at a chicago area apartment on wednesday. among the charges, conspiracy to commit terrorism and possession of explosives.
>> the individuals that we have charged in this investigation are not peaceful protesters. they are domestic terrorists who came to chicago with an anarchist agenda.
>> reporter: the suspects' attorney says police trapped their clients by bringing them the cocktails.
>> it is part of the intimidation campaign. it is part of a fear campaign to deter people from getting out the protest on the streets and to deter people from supporting the protesters.
>> reporter: authorities say the incident reinforces their need to be on heightened alert with thousands of police officers out many force as the president prepares to host 50 world leaders in his home city. earlier this week mayor emmanuel said he welcomes protesters, but is urging everyone to stay peaceful.
>> things are going very well. you know, we've had very limited arrests. i think we're at 14.
>> reporter: orderly protests have sparked throughout the city all week, including today outside the home of the mayor, which drew a crowd of an estimated 500. some held signs that read "health care, not warfare." each group has its own reason for taking to the streets, but also share the common ssage. they are against wall street and the war.
>> i think we're all here to do peaceful action and not cause violence.
>> reporter: now, the largest organized protest will take place tomorrow with as many as 5,000 people expected to attend. as for those three men who are accused of making molitaf cocktails. earlier today a judge ruled they would be held on $1.5 million bond each. lester.
>> kristen wker inhicago tonight. thanks.