If we have uranium, we must be careful with radiation, because it can kill.
Thinking in this sentence, I made it:
First suggestion:
Do the uranium ore kill, without explosions, only with radiation.
One uranium ore have 5 blocks of radiation, any thing in this area will take damage
--Okay, its good, but how we will use uranium without getting closer?
Second suggestion:
Put in the game Lead Ore. This is the best material to use radioatives things. With a Lead Ore we can build:
Boxes of lead, to store radioative things;
Clothes of lead, to use radioative things;
Walls of lead, to contain radiations from the reactors(you put your reactor in a room of lead);
With this things, the nuke will be more realistic, and the people will not be happy in see uranium closer from your base, only if they have a stock of lead.
--Kiko5 - Thanks for your attention--