(Wall Street Journal) Russia withheld a crucial piece of information from the U.S. before the Boston bombings, U.S. officials say, bolstering a concern that distrust between the two governments erased an opportunity to avert the disaster.
In 2011, Russia sent an alert to the Federal Bureau of Investigation about alleged bomber Tamerlan Tsarnaev, prompted in part by text messages between his mother and a Russian relative. The texts suggested Tsarnaev was interested in joining militant groups that Russia blames for attacks in the Caucasus region, according to U.S. officials briefed on the investigations.
U.S. officials call these text messages the most important in a series of missed signals between the two countries. One U.S. official characterized at least one of the text messages as generally discussing jihad, but without any specific mention of terrorism plans.