US State Department issues new El Salvador Travel Warning

The US State Department has issued a new travel warning for those considering visiting El Salvador. The basic message is unchanged from similar advisories in prior years:  there is a lot of crime in El Salvador and travelers should take precautions to avoid being victims:
Tens of thousands of U.S. citizens safely visit El Salvador each year for study, tourism, cruise ship visits, business, and volunteer work. There is no information to suggest that U.S. citizens are specifically targeted by criminals; however, crime and violence are serious problems throughout the country. Since January 2010, 34 U.S. citizens have been murdered in El Salvador including a nine-year-old child in December 2013. During the same time period, 419 U.S. citizens reported having their passports stolen, while others were victims of violent crimes. 
Typical crimes in El Salvador include extortion, mugging, highway assault, home invasion, and car theft. There have also been cases reported in which criminals observe and follow customers making withdrawals at ATMs and banks, then rob them on the road or at a residence. Some victims unwittingly wander into gang-controlled territory and may be targeted, normally at night. Assaults against police officers have risen, and public shootouts are not uncommon. Armed robberies of climbers and hikers in El Salvador’s national parks are known to occur, and the Embassy strongly recommends engaging the services of a local guide certified by the national or local tourist authority when hiking in back country areas -- even within the national parks. The National Civilian Police (PNC) has a special tourist police force (POLITUR) to provide security and assistance to visitors. It has officers located in 19 tourist destinations. (more).
It's important to keep the information which I highlighted in bold in mind, as you read the appropriate cautions from the Travel Advisory.  There are more detailed safety suggestions and other useful travel information on the Country Specific Information page maintained by the State Department.