U.S. and Russia allied against terrorism?

One of the aspects that the massacre in Boston led to current events is the relationship between the United States and Russia on the issue of counter-terrorism cooperation. Currently between the two countries relations are not very good, in Russia Putin's electoral success was also built on the desire to reaffirmation of the country on the international stage, and in this framework has been awaken functional antagonism, dating back to the Cold War, with the USA. After the attack on Obama and Putin have agreed on the resumption of the relationship to promote the fight against terrorism. To do this it will be essential to a true sharing of information, an aspect on which some analysts are serious doubts, whether of a practical nature, that of a political nature. As for the appearance of the actual flow of information, there would be obstacles materials due to American legislation, which sees a number of existing legal constraints that make it difficult to exit from the Federal territory of confidential information, on the other hand, Russia has inherited from the Soviet Union almost an obsession for the confidentiality of your information. Politically, then, the distance on the Syrian case, resulted in a further move away from assumptions of collaboration. However, immediately after the identification of the perpetrators of Vladimir Putin has offered its cooperation, in spite of some of its officials have expressed opposition to the decision. The Chechen president Ramzan Kadyrov, an ally of Putin, has distanced by the assertion that the responsibility for the attack was found in the lack of control of the American structure. There was, however, who saw in this gesture of Putin an aspect of particular interest to the Russian President, concerning the possibility to intensify the crackdown in Chechnya, where parties are often attacks against Russia. Previously the two countries have collaborated with a certain intensity only in the two years immediately followed the attacks of September 2001. However, the news that the Russians have reported to the FBI the eldest of two brothers in 2011, as a follower of radical Islam, highlights how, in a certain way and despite American assurances, Moscow harbored suspicions that indicated the possibility that the man had links with the underground groups of the Caucasus. It must be said that the U.S. has so far mainly concentrated on terrorist groups active in central Europe, perhaps because they have never represented an immediate danger to Washington. Only in 2011 were included in the list of terrorist groups, the Mujahideen of the Caucasus. This fact shows how the lack of knowledge of the phenomenon, from the U.S., may have been exploited by international jihadists environments to hit the United States, through a terrorism that Washington was not prepared. For this reason, the most pragmatic of the American analysts supports the need for closer cooperation with Russian experts, the more prepared for the topic.