RIO DE JANEIRO -- New, stricter security checks were implemented in Brazilian airports Monday, stalling travelers and delaying flights less than three weeks before Rio de Janeiro hosts the Olympics.Starting at 6 a.m., long, chaotic lines formed at Congonhas regional airport in Brazils biggest city, Sao Paulo. Within a half-hour, more than 700 people were waiting on the buildings first and second floors to pass through security checkpoints. The lines eased up by the afternoon.Smaller airports elsewhere in Sao Paulo state in southern Brazil also reported problems. There were long lines as well at the Santos Dumont regional airport in Rio de Janeiro, where the games are scheduled to open Aug. 5. International airports have not been affected so far.The new measures took effect days after the truck attack that killed 84 people in Nice, France, underscoring potential security threats at big events. Authorities say some 85,000 soldiers and police officers will patrol Rios streets during the Olympics.Also Monday, a police bomb squad responded to a report of a suspicious bag outside an apartment building in Rios wealthy Leblon neighborhood. Officers blocked the street and used a robot to inspect the blue sports bag, which turned out to have only clothes inside.This kind of thing isnt typical in Brazil, said Sergio Cabreu, a 68-year-old retiree who lives in a building around the corner. I doubt its anything, but with the Olympics coming up its good to find out.Because of the stricter checks in airports, Brazilian state airport administrator, Infraero, has recommended that travelers now arrive two hours before scheduled domestic flights instead of 30 minutes. At least five flights at Congonhas were delayed Monday, Infraero said.The new procedures include body searches, removal of electronic items from bags before scanning and more thorough luggage inspections.Brazils aviation agency said the steps are necessary.Due to this vacation period and with the proximity of the Olympic Games, demand for air transportation will surely increase, the agency said.Brazilian authorities expect more than 500,000 foreign tourists to visit Rio for the Olympic Games. Federico Bernardeschi Jersey . The players spoke Jan. 13 during a Major League Baseball Players Association conference call after Rodriguez sued the union and Major League Baseball to overturn an arbitrators decision suspending him for the 2014 season and post-season. Blaise Matuidi Juventus Jersey . Perhaps Carroll was so prepared for a break because he believes there is very little the Seattle Seahawks need heading into the off-season. "I dont see anything that we need to add. 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The Spokane goaltender finished with 28 saves, including a Brandon Fushimi penalty shot in the second period that would have tied the game 1-1.Jordan Spieth believes the hard work he put in after an early exit from the Players Championship is paying off after a much-improved start to the week at the AT&T Byron Nelson. The 22-year-old missed the cut at TPC Sawgrass last week in his first event since a final-round collapse at the Masters, but he has made a strong start in Texas by following an opening-round 64 with a five-under 65 on Friday.Spieth mixed six birdies with a solitary bogey at TPC Four Seasons, a course he has notoriously struggled at over the years, giving him the early clubhouse second-round lead with Brooks Koepka. Jordan Spieth posted six birdies during his round The world No 2 has not finished inside the top-25 in the event since a tie for 16th as an amateur in 2010, but feels the extra work put in with coach Cameron Mccormick this week has brought a marked improvement. Its very gratifying, Spieth told the PGA Tours featured group coverage. I have complete trust in Camerons (Mccormick) eye and he has the trust that Im going to put in the work to get to a point where were successful.Sometimes thats not the next week but fortunately, this week it is. Most of our work has been on the greens, and that has shown today. Spieth carded four birdies in a five-hole stretch I feel a little loose with mmy iron play and even some of my wedges, and the proximity to the hole from a lot of the positions Ive been playing hasnt been where I want it.ddddddddddddWeve made up for it with the putter thus far and if we can tone that down a little bit and keep the putter hot, well be in good shape.After missing a 10-footer for birdie at the 11th, Spieth picked up a shot from a similar distance at the next but gave it straight back with a three-putt bogey at the short 13th. Spieths last victory came in Januarys Hyundai Tournament of Champions The world No 2 drained a 20-footer at the 14th and made a move up the leaderboard with a hat-trick of gains from the 16th to reach the turn in 31.A run of close-range pars came to an end with a two-putt birdie at the par-five seventh, before Spieth closed a bogey-free second nine and set the clubhouse target by holing from 10 feet to save par at the ninth. The 13th Ive three-putted twice in a row now and then I ended up in a really tough spot on 14, Spieth added. Ive been on that spot every year and made bogeys, made doubles and made pars, but finally made a birdie out of that.It was a really nice break to get some momentum for sure.Watch the AT&T Byron Nelson throughout the weekend live on Sky Sports 4 - your home of golf Also See: AT&T Byron Nelson leaders Garcia makes bright start First round highlights Golf live on Sky Sports ' ' '