text: Teflon Bank (Forbes.com) Forbes.com - Bank of America Chief Executive Kenneth Lewis has spent more than  #36;200 million over one and a half years for media ads touting the bank's "higher standards." But lately the Charlotte, N.C. bank has been caught up in a series of embarrassing acts that don't quite fit that spin: illegal trades, the stonewalling of regulators and lousy due diligence.