The Iowa Caucuses are in four days and Radio Iowa’s O. Kay Henderson has this report on the closing message from one of the leading candidates. (click on the left side of the audio bar below, to listen)….

On Tuesday, your heard Joe Biden’s closing message to Iowans. Tomorrow (Thursday), Radio Iowa will bring you the latest on Amy Klobuchar’s campaign sprint.

(Radio Iowa) – Classes are canceled district-wide in Waterloo today (Wednesday) over safety concerns. Someone made a threat on social media Tuesday night, threatening to blow up four school buildings. The threat posted to Facebook, targeted East and West High Schools, George Washington Carver Academy and Central Middle School. Snap shots of the threat were shared multiple times on social media.

In a statement released early today, district officials said police and school staff worked throughout the night to investigate the threat as they try to identify the person or persons responsible for the post. District officials say while great progress was made in resolving the issue, more of the investigation needs to be completed before students can safely return to school.

Officials with the Creston Police Department report 30-year old Christopher Bird, of Creston, was arrested Tuesday afternoon. Bird was taken into custody on a Union County warrant for an original charge of Driving While Suspended or Revoked. He was booked into the Union County Jail and released on a $1,000 bond.

And, a woman residing in the 500 block of W. Spencer Street, in Creston, reported Monday morning, that someone broke into her vehicle parked outside of her residence, and took documents including the registration, and proof of insurance. Two children’s jackets were also taken. Entry to the vehicle was gained by prying the driver’s side door open. The damage and loss was estimated at $300.

CEDAR RAPIDS, Iowa (AP) – Police have arrested a suspect in the armed robbery of a student at a Cedar Rapids high school. Cedar Rapids police said Tuesday the 18-year-old male remained in custody but would not yet release his name or the charges against him. The robbery was reported a little after 3:30 p.m. Monday in a parking lot at Kennedy High School. The 18-year-old student was nearing her vehicle when confronted by the robber. Police say he displayed a handgun and took only her cellphone. She was not injured.

CEDAR RAPIDS, Iowa (AP) – A nurse has been given four years in prison for fraudulently obtaining painkillers from her patients in eastern Iowa. Katie Boll, from Manchester, was sentenced Tuesday in U.S. District Court in Cedar Rapids. She’d pleaded guilty to tampering with a consumer product resulting in injury and acquiring the painkiller oxycodone by deception. Federal prosecutors dropped 12 other counts in exchange. She also was ordered to forfeit her nursing license. Authorities said Boll was a nurse for the Good Neighbor Society in Manchester when she schemed to acquire hydrocodone, morphine and other painkillers from at least 14 patients in her care.