Ald. Burton Natarus (42nd) collapsed on the City Council floor this afternoon after delivering a speech in favor of a resolution calling for troops to be withdrawn from Iraq. The 72-year-old alderman was standing near one of the exit doors to the City Council chamber, on the 2nd floor of City Hall, about 1:25 p.m. during the council's regular meeting. Ald. Virginia A. Rugai (19th) had just started to speak when another alderman got the chairman's attention by yelling, "Call 911!" A recess was called and proceedings came to an immediate halt as Natarus' colleagues ran to him. An aide...