US Airways Confuses Liquidity Presentation

US Airways Group (LCC) announced results and glossed over liquidity issues. Under current assets they report Cash, cash equivalents and investments in marketable securities of approximately $1,242 million. Under other assets they report $228 of investments in marketable securities. No tangible information on what type of tangible securities, yields, maturities or anything else that an investor could use to come to a rationale conclusion. This is a lack of transparency about liquidity.