Editing Willis Tower (section)

===Incidents===
In June 2006, [[Liberty City Seven|seven men]] were arrested by the [[FBI]] and charged with plotting to destroy the tower. Deputy FBI Director John Pistole described their plot as "more aspirational than operational".<ref>{{Cite news|last1=Shane|first1=Scott|last2=Zarate|first2=Andrea|date=June 24, 2006|title=F.B.I. Killed Plot in Talking Stage, a Top Aide Says|language=en-US|work=The New York Times|url=https://www.nytimes.com/2006/06/24/us/24terror.html|access-date=September 12, 2022|issn=0362-4331}}</ref><ref>{{Cite news|date=June 23, 2006|title=Seven charged over 'Chicago plot'|language=en-GB|url=http://news.bbc.co.uk/2/hi/americas/5110342.stm|access-date=September 12, 2022}}</ref> The case went to court in October 2007.<ref>{{Cite news|date=October 3, 2007|title=Sears Tower "plot" trial begins|language=en-GB|url=http://news.bbc.co.uk/2/hi/americas/7025316.stm|access-date=September 12, 2022}}</ref> After three trials, five of the suspects were convicted and two acquitted.<ref>{{Cite news|date=May 12, 2009|title=Five guilty in Chicago bomb plot|language=en-GB|url=http://news.bbc.co.uk/2/hi/americas/8046984.stm|access-date=September 12, 2022}}</ref> The alleged leader of the group, [[Narseal Batiste]], was sentenced to {{frac|13|1|2}} years in prison.<ref>{{Cite news|date=November 20, 2009|title=Sears Tower plot leader is jailed|language=en-GB|url=http://news.bbc.co.uk/2/hi/americas/8371671.stm|access-date=September 12, 2022}}</ref> In response to the perceived threat of an attack, the building's largest tenant at this time, [[Ernst & Young]], moved to North Wacker Drive in early 2009.<ref>{{cite web|url=http://www.thechicago77.com/2009/01/sears-tower-to-lose-largest-tenant/|title=Sears Tower to Lose Largest Tenant - The Chicago 77|website=www.thechicago77.com|date=January 9, 2009|access-date=October 3, 2018}}</ref>

In May 2020, heavy rains caused three of the basement levels to flood, knocking out power to the building. This also resulted in many TV and radio stations going off the air.<ref>{{Cite news|url=https://www.robertfeder.com/2020/05/20/flooding-willis-tower-knocks-tv-radio-signals-off-air/|title=Flooding at Willis Tower knocks TV, radio signals off the air|date=May 20, 2020}}</ref>