<p>CAPE CANAVERAL, Fla. - A Nobel Prize-winning member of the board investigating the space shuttle Columbia disaster says he fears NASA may be doomed to suffer more tragedies unless it changes the culture that has led to flawed decision-making.</p>
<p>The "same faulty reasoning" that led to the 1986 Challenger accident also led to Columbia, said Douglas Osheroff, one of the 13 board members wrapping up the report on the Columbia accident.</p>