I second that! Grilled Tuna ROCKS.

Grilled Tuna and Swordfish are some of my favorite foods.
We had Swordfish the other night, and my son didn't realize what he was eating until I asked him how his fish was. He spat it out and said he tought we were eating porkchops.
BTW, he doesn't like fish, but evidently it was working for him since he ate about 75% of it before I asked how it was LOL.
Unfortunately, both swordfish and tuna have mercury lvls in them.
Here's a couple of quotes from CR's June '01 article on it:
START QUOTES
"The Food and Drug Administration (FDA) considers 1 part per million (ppm) the acceptable limit for the level of methylmercury in fish. In January it recommended that vulnerable consumers avoid eating species known to exceed this level--shark, swordfish, king mackerel, and tilefish. It did not mention tuna because tuna levels are below 1 ppm.
However, an assessment of methylmercury toxicity conducted by the Environmental Protection Agency (EPA) and confirmed by the National Academy of Sciences last July suggests the FDA's advice may not adequately protect all consumers. The level of mercury exposure that the EPA considers safe for everyone is one-quarter the level the FDA used as the basis for its 1-ppm limit in fish.
Under the EPA's stricter guidelines, tuna can be a concern, especially since many consumers eat it more often than other fish. In our tests, white tuna averaged 0.31 ppm of methylmercury; light tuna averaged 0.16 ppm. That could be because the species used for light tuna may be smaller and have ingested less mercury than the albacore used for white tuna. We found no difference between tuna in oil and tuna in water. Average levels in the fresh and previously frozen tuna we tested recently were about the same. "
"Another option is to avoid fish with higher mercury levels during these times of your life. Good choices with little methylmercury include butterfish, flounder, haddock, herring, king crab, mullet, sardines, scallops, shrimp, and tilapia".
END QUOTES
The vulnerable people referred to are pregnant, or nursing women, and children under 5.
I guess I won't be eating either as much (esp Tuna, since I eat swordfish only once a month or so anyway). I'm curious as to what the levels in red snapper might be (also a favorite of mine).