Sorry to pour cold water, but are you sure it is absolutely safe to (ever) go to Japan?
Radioactivity.
If one can recall what we have learnt in Physics, some readioactive substances will take many years, some decades, to reach their half life. Even at their half lives, they still emit radioactive substances. And the Fukushima incident happened only a few years ago.
Many would say that Tokyo is far from Fukushima/Sendai area, but one should know how radioactive substances spread. E=mc2.
Some foodstuffs may already been contaminated, and probably unknown to be so.

Having said all that, 'exposure' to such situations may probably be all right if one are only exposed for a day or two.

If one really wants to visit Japan, perhaps going south to Fukuoka or Hiroshima, or thereabout may be safer. Of course, these cities are not as cosmopolitan and fashionable as Tokyo.

Come on, there is a reason for visa waiver.

Think Bhopal, think Chernobyl.
I am just reminding people as effects of radioactivity do not show up till years later. More so for those who plans to have kids.
Exposure to radioactivity is not solely by air only. Imagine you eat a piece of sushi where the rice and fish are slightly contaminated.
It is foolish to think that the effects can only be contained within Fukushima.

Its your health, you take the risk.

Sure. Now we understand why Msian's average lifespan and rate of mortality is lower than many nations. Good luck to you guys.

For my over-optimistic brothers and sisters:

The leakages at the plants are still on-going, Japan needs 40 years to recover from this crisis:
Read this

Extract from this article: Radiation showed up in local milk and vegetables, and briefly appeared in Tokyo's drinking water:
Also read this

And to that somebody who thinks that Japan has very strict safety standards, well, maybe; but are they they the most open, transparent and frank people who will tell you everything, that I do not think so.

And to that somebody who is still alive and kicking, the effects of radioactivity take decades to surface. Radioactivity does not give you an immediate sign or symptom. But once embedded in your system, that is the beginning of mutation of cells. You will see the effects years or decades later.

I am saying this becoz there are many young people in here. Come on, it is only a holiday, if you want the scenery, spend a little more, go to Europe. If you want the shopping, go to USA.
Cherish your health and your lives.

Do you?

Was actually expecting your views and something more intellectual than that.
Perhaps you are not ready.

Spread of Radioactivity

Iodine-131, for example, can be ingested into the thyroid, where it emits beta particles (electrons) that damage tissue. A plague of damaged thyroids has already been reported among as many as 40 percent of the children in the Fukushima area. That percentage can only go higher. In developing youngsters, it can stunt both physical and mental growth. Among adults it causes a very wide range of ancillary ailments, including cancer.

Cesium-137 from Fukushima has been found in fish caught as far away as California. It spreads throughout the body, but tends to accumulate in the muscles. [Half life of Cesiun is about 30 years].

Strontium-90’s half-life is around 29 years. It mimics calcium and goes to our bones.

Read the Whole Text Here

Half life refers to the amount of time needed for the radioactive materials to halve their radioactivity. That is to say, even after 30 years (for Strontium or Cesium), the remaining radioactive material which has halved in its radioactivity is still strong enough to affect health.

The effects of radiation will create effects which cannot be seen or detected in the short term, unless the exposure is extremely intense. Most people will not even know it, and you will see the effects years later surfacing as cancer and malfunctioning or organs.

In my view, Japan is no more safe in our lifetime. It is a real pity as it is a beautiful country.

Japan will not be issuing free visas so easily to Malaysians and Thais if it is not trying to save its dying tourism. Years ago, in its heydays, Japan does not even want tourists from poor SEA countries, and opened up all bags of Msians at its immigration customs.

I will be offensive here: Only kampong folks who has not seen much of the world is jumping onto the seemingly cheap (japanese yen) touristic destination.

It is your life, you decide. I only mean well for my fellow Msians.