Preliminary tests show letter to Obama contains poison ricin

With the aid of Jeff Mason and Susan Heavey WASHINGTON (Reuters) – A letter addressed to President Barack Obama contained a substance that preliminarily tested certain for the deadly poison ricin, authorities mentioned on Wednesday. News that the letter to Obama used to be being investigated came as a flurry of alternative reports of suspicious letters and a bundle brought about the transient evacuation of parts of two Senate buildings and set nerves on facet in Washington. Regulation enforcement authorities reopened the Hart and Russell Senate buildings near the Capitol after assessments on more than a few items confirmed there was no risk. …