Crime rates

Tijuana’s homicide rate has jumped from 28 per 100,000 residents in 2012 to 39 per 100,000 in 2015, which made it the 35th-most-violent city in the world that year, according to a Mexican think tank.

Should San Diego be worried? Try Baltimore:

With six weeks left in 2015, the homicide rate in Baltimore has set a new high for the city, surpassing the previous record set in 1993. The city saw its 300th killing of the year over the weekend; since then, gun violence has killed five more people. Those homicides raised "the city's per capita homicide rate — based on the recent population estimate of 622,793 residents — to 48.97 per 100,000 residents," The Baltimore Sunreports.

Philadelphia should  be worried.  

Let's do the numbers.

49 murders per 100,000 per year, or 980 over 20 years. Spend your youth in Baltimore, and you have a 1% chance of getting murdered.