It's common for radicals to be compressed. Look at this example:
For brief essays about particular radicals, see .
These questions cannot be answered unless accompanied by sufficient knowledge of how different types of citizenships are formed and how these citizenships are practiced.
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Many people still like to know the radical because it can lend its meaning to the whole character. For instance, 炉 (1934) means "furnace, hearth." The "fire" radical, 火, clearly makes a large semantic contribution here. Those who are most familiar with kanji (particularly native speakers) will approach an unknown character by identifying its radical and its phonetic (a component that lends sound and sometimes meaning to the kanji) and then making an educated guess about the yomi and meaning.