Cartels turn to improvised landmines as violence escalates in Mexico
MEXICO CITY — In one moment, a column of soldiers and military pickups creeps along a dirt road in western Mexico. In the next, a massive explosion sends debris and a body flying. The ground where a soldier stood seconds earlier is a gaping hole, the aftermath of an improvised land mine planted by one of the region’s warring drug cartels.That soldier was killed and four others were injured in the January explosion, which was captured in a grainy video that circulated on social media. Then last month, four more soldiers…