Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE news_report ( journalist_ID int, Event_ID int, Work_Type text )
TABLE: CREATE TABLE event ( Event_ID int, Date text, Venue text, Name text, Event_Attendance int )
TABLE: CREATE TABLE journalist ( journalist_ID int, Name text, Nationality text, Age text, Years_working int )

### Question ###
Return a histogram on what are the nationalities and the total ages of journalists?

### Accurate SQL ###

SELECT Nationality, SUM(Age) FROM journalist GROUP BY Nationality