Safety
Chile is a fairly safe destination for South American travelers. This is one of the things about Chile you should know before travelling. Chile is now ranked 27th safest country on the earth, according to the Global Peace Index (updated every year). Along with Uruguay, it is often regarded as the safest country in South America. The "thin country" can be regarded a particularly safe destination due to its low crime rates and friendly attitude toward visitors (especially if you visit its spectacular national parks).
Visiting and residing in Chile nowadays is not particularly dangerous, and many Chileans pride themselves on remaining the most stable and developed country in Latin America, despite glaring inequities. Most visitors and expatriates have no problems, and they enjoy a level of living and service that is unrivaled on the continent of South America.
Regardless, there is no reason not to take the bare minimum of measures. Basic safety advice is always in order: stay away from demonstrations and gatherings, and don't roam around with valuables. Always keep a copy of your identification (passport, driver's license, etc.) at your lodging. Leave the very minimum of cash with you and pay discreetly, as in all countries.