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   COLORADO SPRINGS, Colo. (AP) - USA Swimming will choose between Omaha, Neb., San Antonio and St. Louis as the site for the 2016 Olympic swimming trials.

   The national governing body says it will announce the host city on Saturday.

   Omaha has hosted the last two trials, in 2012 and 2008. Last year's eight-day event was attended by more than 164,000 fans and the meet was broadcast live in prime time on network television. Two temporary pools were built inside the CenturyLink Center for the event.

   In 2004, the trials were held in Long Beach, Calif., the first time they were held outdoors in temporary pools.

   In January, USA Swimming said six cities were bidding to host the trials. Former host Indianapolis, along with Greensboro, N.C., and Jacksonville, Fla., were eliminated after an evaluation team from USA Swimming, along with an outside member of the group's board, visited each location.

   TUPELO, Miss. (AP) - Law enforcement officials searched the home of a second Mississippi man implicated in the mailing of ricin poison-laced letters to the president and a U.S. senator after charges were dropped without explanation against the man arrested in the case last week.

   Everett Dutschke, whose home was searched Tuesday by dozens of officials, some in hazmat suits, had feuded with Paul Kevin Curtis, a 45 year old celebrity impersonator who has said since his arrest that he had nothing to do with the case.

   The search began early Tuesday afternoon. At about 8:30 p.m. CDT, two FBI agents and two members of the state's chemical response team left his property and began combing through ditches, culverts and woods about a block away from his house in the neighborhood.

   A man and his teenage son are safe after being rescued from the Mississippi River Tuesday evening.  

   About 6 p.m. the two had become stranded when their johnboat snagged on debris near the Ameren Rush Island power plant about 12 miles south of Crystal City.  

   The Coast Guard was unable to launch an immediate rescue operation because their nearby boat launches were all underwater.  

   Crews from the Jefferson County R-7 Fire Department did get a boat in the water and rescued the pair just before 8 p.m.  

   Both the father and his 15 year old son were treated for exposure, but are expected to recover.