According to an article on MSNBC.com (http://http//www.msnbc.msn.com/id/27311474/), the government is investigating more than 1 million Ford vehicles after getting reports that the tires leaking. I guess this is being caused by faulty valve stems (http://en.wikipedia.org/wiki/Valve_stem) made by a Chinese company. There are 12 models of Ford vehicles from 2007 that are involved. Several complaints have been made about the tires, but no injuries or accidents. The article says that many of the complaints were that the valves were severely cracked or cracked and leaking, and others said that the tires lost inflation and needed to be replaced. In many cases, investigations can turn into recalls. So, if you have a Ford vehicle be cautious of the tires, specifically the stem valves.