The American Red Cross is announcing new steps to address problems exposed by its Hurricane Katrina response.The aid group is sending a 24-page statement to a Senate panel to explain new measures. The Red Cross is giving up control of some disaster help dollars and says it will better investigate claims of wrongdoing. The group's chairman writes to lawmakers that the Red Cross and other aid groups could "undoubtedly" have done better after Katrina. Bonnie McElveen-Hunter says there's "no excuse for the instances of improper conduct" that affected the Red Cross Katrina relief efforts. So the group says it will standardize financial controls, hire more investigators to review complaints and give churches and religious groups control in some areas. Copyright 2006 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.