It turns out that the ORGANIC chemicals - chloromethane and dichloromethane - found in Martian soil samples from the Phoenix lander were ALSO found in soil samples from the Atacama desert in Chile. However, these chemicals were only discovered in the Chilean soil AFTER a little perchlorate was added to the soil.
The next missions will be able to test this theory further with the use of the Sample Analysis at Mars instrument (SAM) attached to the Curiosity rover.
While this discovery does not yield knowledge to the presence of LIFE on Mars, every bit of discovery get us one step further towards understanding the biological history of the red planet.
lllater - M