The Federal Emergency Management Agency has announced it will review its policies on providing trailers for evacuees of Hurricane Katrina. The move follows last week’s news top FEMA officials routinely suppressed internal warnings about dangerous levels of formaldehyde gas in trailers inhabited by evacuees. But the emails show FEMA officials were only concerned with avoiding any legal liability for the evacuees’ potential health problems. As many as 120,000 families lived in the trailers. FEMA officials initially claimed they would not review their policy but reversed course following public outcry.