 Complete the following phrase:  The short history of the event, however, was littered with controversies. The 2002 United States Grand Prix was marred by a bizarre ending, in which Michael Schumacher, having already clinched the championship, seemingly tried to stage a dead heat with teammate Rubens Barrichello. The official timings showed Barrichello ahead by 0.011 seconds at the line, leading fans and media to dub the event a farce. The 2002 race was also the first-ever Formula One race to use SAFER barriers. In 2003 Schumacher once more set himself up for the title with an Indianapolis win in a dramatic wet-dry event. The 2005 race turned out to be one of the most controversial races in motorsport history. Michelin realized their tires were ill-equipped for the banking after two heavy crashes for Toyota both for Ralf Schumacher and stand-in Ricardo Zonta, and at the last second, the Michelin teams pulled into the pits at the end of the formation lap, leaving only the three Bridgestone teams six cars to contest the race. Fans and media were highly critical of the poor handling of the situation. Many fans walked out, and costly ticket refunds were issued. The 2005 event was not the first tire issue for Michelin as Ralf Schumacher also had heavily crashed, fracturing his back in the 