Berlin, OCT 21, SPA -- Germany plans to tighten vetting procedures forforeign students as a consequence of a failed train bomb attack threemonths ago, DPA quoted a news magazine as saying. The weekly Der Spiegel said persons who stand as guarantors forstudents in their visa applications would be checked out in future inaddition to the students themselves and their sponsors. The duration of residence permits would be cut by half to at leastone year and the students would have to report regularly to localgovernment offices, the magazine said in a report released in advanceof publication Monday. A 21-year-old Lebanese man studying in Germany is among threepeople in detention for planting suitcase bombs that failed to go offin Dortmund and Koblenz on July 31. Der Spiegel said two men who acted as references for the Lebanesestudent were not scrutinized by officials although they were known topolice. In addition to the man held in German custody, two people weredetained in Lebanon in connection with the suitcase bombs. Another Lebanese student taken into custody in Germany wasreleased last month after a court ruled there was insufficientevidence to link him to the thwarted attacks. The suitcase bombs failed to explode because of a faulty mechanismand were only discovered later by unsuspecting train guards.--SPA www.spa.gov.sa/397395